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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.264 by root, Sun May 6 05:44:48 2007 UTC vs.
Revision 1.476 by root, Wed Sep 2 16:54:20 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Socket;	30	use Socket;
9	use Storable;	31	use EV;
10	use Event;
11	use Opcode;	32	use Opcode;
12	use Safe;	33	use Safe;
13	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
14		36
		37	use Guard ();
15	use Coro 3.61 ();	38	use Coro ();
16	use Coro::State;	39	use Coro::State;
17	use Coro::Handle;	40	use Coro::Handle;
		41	use Coro::EV;
18	use Coro::Event;	42	use Coro::AnyEvent;
19	use Coro::Timer;	43	use Coro::Timer;
20	use Coro::Signal;	44	use Coro::Signal;
21	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
22	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
23	use Coro::Storable;	50	use Coro::Storable;
		51	use Coro::Util ();
24		52
		53	use JSON::XS 2.01 ();
25	use BDB ();	54	use BDB ();
26	use Data::Dumper;	55	use Data::Dumper;
27	use Digest::MD5;	56	use Digest::MD5;
28	use Fcntl;	57	use Fcntl;
29	use YAML::Syck ();	58	use YAML ();
30	use IO::AIO 2.32 ();	59	use IO::AIO ();
31	use Time::HiRes;	60	use Time::HiRes;
32	use Compress::LZF;	61	use Compress::LZF;
		62	use Digest::MD5 ();
		63
		64	AnyEvent::detect;
33		65
34	# configure various modules to our taste	66	# configure various modules to our taste
35	#	67	#
36	$Storable::canonical = 1; # reduce rsync transfers	68	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		70
		71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		76
40	$Event::Eval = 1; # no idea why this is required, but it is	77	# strictly for debugging
41		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		79
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		81
49	our %COMMAND = ();	82	our %COMMAND = ();
50	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
51		84
52	our @EXTS = (); # list of extension package names	85	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	88	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	89	our %EXT_MAP = (); # pluggable maps
56		90
57	our $RELOAD; # number of reloads so far	91	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	92	our @EVENT;
59		93
60	our $CONFDIR = confdir;	94	our $CONFDIR = confdir;
61	our $DATADIR = datadir;	95	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	96	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	97	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	98	our $MAPDIR = "$DATADIR/" . mapdir;
65	our $LOCALDIR = localdir;	99	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	100	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	101	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	102	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	103	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	104	our $BDBDIR = "$LOCALDIR/db";
		105	our $PIDFILE = "$LOCALDIR/pid";
		106	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		107
		108	our %RESOURCE;
71		109
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	110	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
73	our $TICK_WATCHER;
74	our $AIO_POLL_WATCHER;
75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	111	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	112	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	113	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		114
		115	our $BDB_DEADLOCK_WATCHER;
		116	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	117	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	118	our $DB_ENV;
		119
		120	our @EXTRA_MODULES = qw(pod mapscript);
82		121
83	our %CFG;	122	our %CFG;
84		123
85	our $UPTIME; $UPTIME ||= time;	124	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	125	our $RUNTIME;
		126	our $NOW;
87		127
88	our %PLAYER; # all users	128	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	129	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	130	our $LINK_MAP; # the special {link} map, which is always available
91		131
92	# used to convert map paths into valid unix filenames by replacing / by ∕	132	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	133	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		134
		135	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		136	our $LOADAVG; # same thing, but with alpha-smoothing
		137	our $JITTER; # average jitter
		138	our $TICK_START; # for load detecting purposes
		139
		140	our @POST_INIT;
		141
		142	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		143	our $REALLY_UNLOOP; # never set to true, please :)
		144
95	binmode STDOUT;	145	binmode STDOUT;
96	binmode STDERR;	146	binmode STDERR;
97		147
98	# read virtual server time, if available	148	# read virtual server time, if available
99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	149	unless ($RUNTIME || !-e $RUNTIMEFILE) {
100	open my $fh, "<", "$LOCALDIR/runtime"	150	open my $fh, "<", $RUNTIMEFILE
101	or die "unable to read runtime file: $!";	151	or die "unable to read $RUNTIMEFILE file: $!";
102	$RUNTIME = <$fh> + 0.;	152	$RUNTIME = <$fh> + 0.;
103	}	153	}
		154
		155	eval "sub TICK() { $TICK } 1" or die;
104		156
105	mkdir $_	157	mkdir $_
106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	158	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
107		159
108	our $EMERGENCY_POSITION;	160	our $EMERGENCY_POSITION;
…		…
139		191
140	=item $cf::TICK	192	=item $cf::TICK
141		193
142	The interval between server ticks, in seconds.	194	The interval between server ticks, in seconds.
143		195
		196	=item $cf::LOADAVG
		197
		198	The current CPU load on the server (alpha-smoothed), as a value between 0
		199	(none) and 1 (overloaded), indicating how much time is spent on processing
		200	objects per tick. Healthy values are < 0.5.
		201
		202	=item $cf::LOAD
		203
		204	The raw value load value from the last tick.
		205
144	=item %cf::CFG	206	=item %cf::CFG
145		207
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	208	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
147	from wherever your confdir points to.	209	from wherever your confdir points to.
148		210
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	211	=item cf::wait_for_tick, cf::wait_for_tick_begin
150		212
151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	213	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
152	returns directly I<after> the tick processing (and consequently, can only wake one process	214	returns directly I<after> the tick processing (and consequently, can only wake one process
153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	215	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
154		216
		217	=item @cf::INVOKE_RESULTS
		218
		219	This array contains the results of the last C<invoke ()> call. When
		220	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		221	that call.
		222
155	=back	223	=back
156		224
157	=cut	225	=cut
158		226
159	BEGIN {	227	BEGIN {
…		…
163	$msg .= "\n"	231	$msg .= "\n"
164	unless $msg =~ /\n$/;	232	unless $msg =~ /\n$/;
165		233
166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	234	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167		235
168	utf8::encode $msg;
169	LOG llevError, $msg;	236	LOG llevError, $msg;
170	};	237	};
171	}	238	}
		239
		240	$Coro::State::DIEHOOK = sub {
		241	return unless $^S eq 0; # "eq", not "=="
		242
		243	if ($Coro::current == $Coro::main) {#d#
		244	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		245	return;#d#
		246	}#d#
		247
		248	# kill coroutine otherwise
		249	warn Carp::longmess $_[0];
		250	Coro::terminate
		251	};
		252
		253	$SIG{__DIE__} = sub { }; #d#?
172		254
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	255	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	256	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	257	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	258	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	259	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		260	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
178	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	261	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
179		262
180	# we bless all objects into (empty) derived classes to force a method lookup	263	# we bless all objects into (empty) derived classes to force a method lookup
181	# within the Safe compartment.	264	# within the Safe compartment.
182	for my $pkg (qw(	265	for my $pkg (qw(
183	cf::global cf::attachable	266	cf::global cf::attachable
184	cf::object cf::object::player	267	cf::object cf::object::player
185	cf::client cf::player	268	cf::client cf::player
186	cf::arch cf::living	269	cf::arch cf::living
		270	cf::map cf::mapspace
187	cf::map cf::party cf::region	271	cf::party cf::region
188	)) {	272	)) {
189	no strict 'refs';
190	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	273	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
191	}	274	}
192		275
193	$Event::DIED = sub {	276	$EV::DIED = sub {
194	warn "error in event callback: @_";	277	warn "error in event callback: @_";
195	};	278	};
		279
		280	#############################################################################
196		281
197	=head2 UTILITY FUNCTIONS	282	=head2 UTILITY FUNCTIONS
198		283
199	=over 4	284	=over 4
200		285
…		…
219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	304	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220	$d	305	$d
221	} || "[unable to dump $_[0]: '$@']";	306	} || "[unable to dump $_[0]: '$@']";
222	}	307	}
223		308
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	309	=item $ref = cf::decode_json $json
227		310
228	Converts a JSON string into the corresponding perl data structure.	311	Converts a JSON string into the corresponding perl data structure.
229		312
230	=item $json = cf::to_json $ref	313	=item $json = cf::encode_json $ref
231		314
232	Converts a perl data structure into its JSON representation.	315	Converts a perl data structure into its JSON representation.
233		316
		317	=cut
		318
		319	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		320
		321	sub encode_json($) { $json_coder->encode ($_[0]) }
		322	sub decode_json($) { $json_coder->decode ($_[0]) }
		323
		324	=item cf::post_init { BLOCK }
		325
		326	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		327	but I<before> the server starts ticking again.
		328
		329	The cdoeblock will have a single boolean argument to indicate whether this
		330	is a reload or not.
		331
		332	=cut
		333
		334	sub post_init(&) {
		335	push @POST_INIT, shift;
		336	}
		337
234	=item cf::lock_wait $string	338	=item cf::lock_wait $string
235		339
236	Wait until the given lock is available. See cf::lock_acquire.	340	Wait until the given lock is available. See cf::lock_acquire.
237		341
238	=item my $lock = cf::lock_acquire $string	342	=item my $lock = cf::lock_acquire $string
239		343
240	Wait until the given lock is available and then acquires it and returns	344	Wait until the given lock is available and then acquires it and returns
241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	345	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
242	for example when the coroutine gets canceled), the lock is automatically	346	for example when the coroutine gets canceled), the lock is automatically
243	returned.	347	returned.
244		348
		349	Locks are *not* recursive, locking from the same coro twice results in a
		350	deadlocked coro.
		351
245	Lock names should begin with a unique identifier (for example, cf::map::find	352	Lock names should begin with a unique identifier (for example, cf::map::find
246	uses map_find and cf::map::load uses map_load).	353	uses map_find and cf::map::load uses map_load).
247		354
248	=item $locked = cf::lock_active $string	355	=item $locked = cf::lock_active $string
249		356
250	Return true if the lock is currently active, i.e. somebody has locked it.	357	Return true if the lock is currently active, i.e. somebody has locked it.
251		358
252	=cut	359	=cut
253		360
254	our %LOCK;	361	our $LOCKS = new Coro::SemaphoreSet;
255		362
256	sub lock_wait($) {	363	sub lock_wait($) {
257	my ($key) = @_;	364	$LOCKS->wait ($_[0]);
258
259	# wait for lock, if any
260	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;
263	}
264	}	365	}
265		366
266	sub lock_acquire($) {	367	sub lock_acquire($) {
267	my ($key) = @_;	368	$LOCKS->guard ($_[0])
268
269	# wait, to be sure we are not locked
270	lock_wait $key;
271
272	$LOCK{$key} = [];
273
274	Coro::guard {
275	# wake up all waiters, to be on the safe side
276	$_->ready for @{ delete $LOCK{$key} };
277	}
278	}	369	}
279		370
280	sub lock_active($) {	371	sub lock_active($) {
281	my ($key) = @_;	372	$LOCKS->count ($_[0]) < 1
282
283	! ! $LOCK{$key}
284	}	373	}
285		374
286	sub freeze_mainloop {	375	sub freeze_mainloop {
287	return unless $TICK_WATCHER->is_active;	376	tick_inhibit_inc;
288		377
289	my $guard = Coro::guard {	378	&Guard::guard (\&tick_inhibit_dec);
290	$TICK_WATCHER->start;	379	}
		380
		381	=item cf::periodic $interval, $cb
		382
		383	Like EV::periodic, but randomly selects a starting point so that the actions
		384	get spread over timer.
		385
		386	=cut
		387
		388	sub periodic($$) {
		389	my ($interval, $cb) = @_;
		390
		391	my $start = rand List::Util::min 180, $interval;
		392
		393	EV::periodic $start, $interval, 0, $cb
		394	}
		395
		396	=item cf::get_slot $time[, $priority[, $name]]
		397
		398	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		399	This call blocks and returns only when you have at least C<$time> seconds
		400	of cpu time till the next tick. The slot is only valid till the next cede.
		401
		402	The optional C<$name> can be used to identify the job to run. It might be
		403	used for statistical purposes and should identify the same time-class.
		404
		405	Useful for short background jobs.
		406
		407	=cut
		408
		409	our @SLOT_QUEUE;
		410	our $SLOT_QUEUE;
		411
		412	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		413	$SLOT_QUEUE = Coro::async {
		414	$Coro::current->desc ("timeslot manager");
		415
		416	my $signal = new Coro::Signal;
		417
		418	while () {
		419	next_job:
		420	my $avail = cf::till_tick;
		421	if ($avail > 0.01) {
		422	for (0 .. $#SLOT_QUEUE) {
		423	if ($SLOT_QUEUE[$_][0] < $avail) {
		424	my $job = splice @SLOT_QUEUE, $_, 1, ();
		425	$job->[2]->send;
		426	Coro::cede;
		427	goto next_job;
		428	}
		429	}
		430	}
		431
		432	if (@SLOT_QUEUE) {
		433	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		434	push @cf::WAIT_FOR_TICK, $signal;
		435	$signal->wait;
		436	} else {
		437	Coro::schedule;
		438	}
291	};	439	}
292	$TICK_WATCHER->stop;	440	};
293	$guard	441
		442	sub get_slot($;$$) {
		443	return if tick_inhibit || $Coro::current == $Coro::main;
		444
		445	my ($time, $pri, $name) = @_;
		446
		447	$time = $TICK * .6 if $time > $TICK * .6;
		448	my $sig = new Coro::Signal;
		449
		450	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		451	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		452	$SLOT_QUEUE->ready;
		453	$sig->wait;
294	}	454	}
295		455
296	=item cf::async { BLOCK }	456	=item cf::async { BLOCK }
297		457
298	Currently the same as Coro::async_pool, meaning you cannot use	458	Currently the same as Coro::async_pool, meaning you cannot use
…		…
303		463
304	BEGIN { *async = \&Coro::async_pool }	464	BEGIN { *async = \&Coro::async_pool }
305		465
306	=item cf::sync_job { BLOCK }	466	=item cf::sync_job { BLOCK }
307		467
308	The design of crossfire+ requires that the main coro ($Coro::main) is	468	The design of Deliantra requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	469	is always able to handle events or runnable, as Deliantra is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	470	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		471	acceptable.
311		472
312	If it must be done, put the blocking parts into C<sync_job>. This will run	473	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	474	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	475	server will be frozen during this time, so the block should either finish
315	fast or be very important.	476	fast or be very important.
…		…
318		479
319	sub sync_job(&) {	480	sub sync_job(&) {
320	my ($job) = @_;	481	my ($job) = @_;
321		482
322	if ($Coro::current == $Coro::main) {	483	if ($Coro::current == $Coro::main) {
		484	my $time = EV::time;
		485
323	# this is the main coro, too bad, we have to block	486	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	487	# till the operation succeeds, freezing the server :/
325		488
326	# TODO: use suspend/resume instead	489	LOG llevError, Carp::longmess "sync job";#d#
327	# (but this is cancel-safe)	490
328	my $freeze_guard = freeze_mainloop;	491	my $freeze_guard = freeze_mainloop;
329		492
330	my $busy = 1;	493	my $busy = 1;
331	my @res;	494	my @res;
332		495
333	(async {	496	(async {
		497	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	498	@res = eval { $job->() };
335	warn $@ if $@;	499	warn $@ if $@;
336	undef $busy;	500	undef $busy;
337	})->prio (Coro::PRIO_MAX);	501	})->prio (Coro::PRIO_MAX);
338		502
339	while ($busy) {	503	while ($busy) {
340	Coro::cede or Event::one_event;	504	if (Coro::nready) {
		505	Coro::cede_notself;
		506	} else {
		507	EV::loop EV::LOOP_ONESHOT;
341	}	508	}
		509	}
		510
		511	my $time = EV::time - $time;
		512
		513	$TICK_START += $time; # do not account sync jobs to server load
342		514
343	wantarray ? @res : $res[0]	515	wantarray ? @res : $res[0]
344	} else {	516	} else {
345	# we are in another coroutine, how wonderful, everything just works	517	# we are in another coroutine, how wonderful, everything just works
346		518
…		…
366	$EXT_CORO{$coro+0} = $coro;	538	$EXT_CORO{$coro+0} = $coro;
367		539
368	$coro	540	$coro
369	}	541	}
370		542
371	sub write_runtime {	543	=item fork_call { }, $args
372	my $runtime = "$LOCALDIR/runtime";
373		544
374	# first touch the runtime file to show we are still running:	545	Executes the given code block with the given arguments in a seperate
375	# the fsync below can take a very very long time.	546	process, returning the results. Everything must be serialisable with
		547	Coro::Storable. May, of course, block. Note that the executed sub may
		548	never block itself or use any form of event handling.
376		549
377	warn "touching runtime...\n";#d#	550	=cut
378	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	551
379	utime undef, undef, $fh;	552	sub fork_call(&@) {
		553	my ($cb, @args) = @_;
		554
		555	# we seemingly have to make a local copy of the whole thing,
		556	# otherwise perl prematurely frees the stuff :/
		557	# TODO: investigate and fix (likely this will be rather laborious)
		558
		559	my @res = Coro::Util::fork_eval {
		560	reset_signals;
		561	&$cb
		562	}, @args;
		563
		564	wantarray ? @res : $res[-1]
		565	}
		566
		567	=item $coin = coin_from_name $name
		568
		569	=cut
		570
		571	our %coin_alias = (
		572	"silver" => "silvercoin",
		573	"silvercoin" => "silvercoin",
		574	"silvercoins" => "silvercoin",
		575	"gold" => "goldcoin",
		576	"goldcoin" => "goldcoin",
		577	"goldcoins" => "goldcoin",
		578	"platinum" => "platinacoin",
		579	"platinumcoin" => "platinacoin",
		580	"platinumcoins" => "platinacoin",
		581	"platina" => "platinacoin",
		582	"platinacoin" => "platinacoin",
		583	"platinacoins" => "platinacoin",
		584	"royalty" => "royalty",
		585	"royalties" => "royalty",
		586	);
		587
		588	sub coin_from_name($) {
		589	$coin_alias{$_[0]}
		590	? cf::arch::find $coin_alias{$_[0]}
		591	: undef
		592	}
		593
		594	=item $value = cf::db_get $family => $key
		595
		596	Returns a single value from the environment database.
		597
		598	=item cf::db_put $family => $key => $value
		599
		600	Stores the given C<$value> in the family. It can currently store binary
		601	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		602
		603	=item $db = cf::db_table "name"
		604
		605	Create and/or open a new database table. The string must not be "db" and must be unique
		606	within each server.
		607
		608	=cut
		609
		610	sub db_table($) {
		611	my ($name) = @_;
		612	my $db = BDB::db_create $DB_ENV;
		613
		614	eval {
		615	$db->set_flags (BDB::CHKSUM);
		616
		617	utf8::encode $name;
		618	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		619	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		620	cf::cleanup "db_open(db): $!" if $!;
380	}	621	};
		622	cf::cleanup "db_open(db): $@" if $@;
381		623
382	my $guard = cf::lock_acquire "write_runtime";	624	$db
		625	}
383		626
384	warn "starting to write runtime...\n";#d#	627	our $DB;
385	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
386	or return;
387		628
388	my $value = $cf::RUNTIME + 90 + 10;	629	sub db_init {
389	# 10 is the runtime save interval, for a monotonic clock	630	cf::sync_job {
390	# 60 allows for the watchdog to kill the server.	631	$DB ||= db_table "db";
		632	};
		633	}
391		634
392	(aio_write $fh, 0, (length $value), $value, 0) <= 0	635	sub db_get($$) {
393	and return;	636	my $key = "$_[0]/$_[1]";
394		637
395	# always fsync - this file is important	638	cf::sync_job {
396	aio_fsync $fh	639	BDB::db_get $DB, undef, $key, my $data;
397	and return;
398		640
399	# touch it again to show we are up-to-date	641	$! ? ()
400	utime undef, undef, $fh;	642	: $data
401
402	close $fh
403	or return;
404
405	aio_rename "$runtime~", $runtime
406	and return;
407
408	warn "... done writing runtime.\n";#d#
409
410	1	643	}
		644	}
		645
		646	sub db_put($$$) {
		647	BDB::dbreq_pri 4;
		648	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		649	}
		650
		651	=item cf::cache $id => [$paths...], $processversion => $process
		652
		653	Generic caching function that returns the value of the resource $id,
		654	caching and regenerating as required.
		655
		656	This function can block.
		657
		658	=cut
		659
		660	sub cache {
		661	my ($id, $src, $processversion, $process) = @_;
		662
		663	my $meta =
		664	join "\x00",
		665	$processversion,
		666	map {
		667	aio_stat $_
		668	and Carp::croak "$_: $!";
		669
		670	($_, (stat _)[7,9])
		671	} @$src;
		672
		673	my $dbmeta = db_get cache => "$id/meta";
		674	if ($dbmeta ne $meta) {
		675	# changed, we may need to process
		676
		677	my @data;
		678	my $md5;
		679
		680	for (0 .. $#$src) {
		681	0 <= aio_load $src->[$_], $data[$_]
		682	or Carp::croak "$src->[$_]: $!";
		683	}
		684
		685	# if processing is expensive, check
		686	# checksum first
		687	if (1) {
		688	$md5 =
		689	join "\x00",
		690	$processversion,
		691	map {
		692	cf::cede_to_tick;
		693	($src->[$_], Digest::MD5::md5_hex $data[$_])
		694	} 0.. $#$src;
		695
		696
		697	my $dbmd5 = db_get cache => "$id/md5";
		698	if ($dbmd5 eq $md5) {
		699	db_put cache => "$id/meta", $meta;
		700
		701	return db_get cache => "$id/data";
		702	}
		703	}
		704
		705	my $t1 = Time::HiRes::time;
		706	my $data = $process->(\@data);
		707	my $t2 = Time::HiRes::time;
		708
		709	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		710
		711	db_put cache => "$id/data", $data;
		712	db_put cache => "$id/md5" , $md5;
		713	db_put cache => "$id/meta", $meta;
		714
		715	return $data;
		716	}
		717
		718	db_get cache => "$id/data"
411	}	719	}
412		720
413	=item cf::datalog type => key => value, ...	721	=item cf::datalog type => key => value, ...
414		722
415	Log a datalog packet of the given type with the given key-value pairs.	723	Log a datalog packet of the given type with the given key-value pairs.
…		…
427		735
428	#############################################################################	736	#############################################################################
429		737
430	=head2 ATTACHABLE OBJECTS	738	=head2 ATTACHABLE OBJECTS
431		739
432	Many objects in crossfire are so-called attachable objects. That means you can	740	Many objects in deliantra are so-called attachable objects. That means you can
433	attach callbacks/event handlers (a collection of which is called an "attachment")	741	attach callbacks/event handlers (a collection of which is called an "attachment")
434	to it. All such attachable objects support the following methods.	742	to it. All such attachable objects support the following methods.
435		743
436	In the following description, CLASS can be any of C<global>, C<object>	744	In the following description, CLASS can be any of C<global>, C<object>
437	C<player>, C<client> or C<map> (i.e. the attachable objects in	745	C<player>, C<client> or C<map> (i.e. the attachable objects in
438	crossfire+).	746	Deliantra).
439		747
440	=over 4	748	=over 4
441		749
442	=item $attachable->attach ($attachment, key => $value...)	750	=item $attachable->attach ($attachment, key => $value...)
443		751
…		…
487	=item cf::CLASS::attachment $name, ...	795	=item cf::CLASS::attachment $name, ...
488		796
489	Register an attachment by C<$name> through which attachable objects of the	797	Register an attachment by C<$name> through which attachable objects of the
490	given CLASS can refer to this attachment.	798	given CLASS can refer to this attachment.
491		799
492	Some classes such as crossfire maps and objects can specify attachments	800	Some classes such as deliantra maps and objects can specify attachments
493	that are attached at load/instantiate time, thus the need for a name.	801	that are attached at load/instantiate time, thus the need for a name.
494		802
495	These calls expect any number of the following handler/hook descriptions:	803	These calls expect any number of the following handler/hook descriptions:
496		804
497	=over 4	805	=over 4
…		…
606	$registry = $CB_TYPE[$object_type] ||= [];	914	$registry = $CB_TYPE[$object_type] ||= [];
607		915
608	} elsif ($type eq "subtype") {	916	} elsif ($type eq "subtype") {
609	defined $object_type or Carp::croak "subtype specified without type";	917	defined $object_type or Carp::croak "subtype specified without type";
610	my $object_subtype = shift @arg;	918	my $object_subtype = shift @arg;
611	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	919	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
612		920
613	} elsif ($type eq "package") {	921	} elsif ($type eq "package") {
614	my $pkg = shift @arg;	922	my $pkg = shift @arg;
615		923
616	while (my ($name, $id) = each %cb_id) {	924	while (my ($name, $id) = each %cb_id) {
…		…
645	_attach $registry, $klass, @attach;	953	_attach $registry, $klass, @attach;
646	}	954	}
647		955
648	$obj->{$name} = \%arg;	956	$obj->{$name} = \%arg;
649	} else {	957	} else {
650	warn "object uses attachment '$name' that is not available, postponing.\n";	958	warn "object uses attachment '$name' which is not available, postponing.\n";
651	}	959	}
652		960
653	$obj->{_attachment}{$name} = undef;	961	$obj->{_attachment}{$name} = undef;
654	}	962	}
655		963
…		…
657	if (ref $_[0]) {	965	if (ref $_[0]) {
658	_object_attach @_;	966	_object_attach @_;
659	} else {	967	} else {
660	_attach shift->_attach_registry, @_;	968	_attach shift->_attach_registry, @_;
661	}	969	}
		970	_recalc_want;
662	};	971	};
663		972
664	# all those should be optimised	973	# all those should be optimised
665	sub cf::attachable::detach {	974	sub cf::attachable::detach {
666	my ($obj, $name) = @_;	975	my ($obj, $name) = @_;
…		…
669	delete $obj->{_attachment}{$name};	978	delete $obj->{_attachment}{$name};
670	reattach ($obj);	979	reattach ($obj);
671	} else {	980	} else {
672	Carp::croak "cannot, currently, detach class attachments";	981	Carp::croak "cannot, currently, detach class attachments";
673	}	982	}
		983	_recalc_want;
674	};	984	};
675		985
676	sub cf::attachable::attached {	986	sub cf::attachable::attached {
677	my ($obj, $name) = @_;	987	my ($obj, $name) = @_;
678		988
…		…
693	";	1003	";
694	die if $@;	1004	die if $@;
695	}	1005	}
696		1006
697	our $override;	1007	our $override;
698	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1008	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
699		1009
700	sub override {	1010	sub override {
701	$override = 1;	1011	$override = 1;
702	@invoke_results = ();	1012	@INVOKE_RESULTS = (@_);
703	}	1013	}
704		1014
705	sub do_invoke {	1015	sub do_invoke {
706	my $event = shift;	1016	my $event = shift;
707	my $callbacks = shift;	1017	my $callbacks = shift;
708		1018
709	@invoke_results = ();	1019	@INVOKE_RESULTS = ();
710		1020
711	local $override;	1021	local $override;
712		1022
713	for (@$callbacks) {	1023	for (@$callbacks) {
714	eval { &{$_->[1]} };	1024	eval { &{$_->[1]} };
…		…
723	}	1033	}
724		1034
725	0	1035	0
726	}	1036	}
727		1037
728	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1038	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
729		1039
730	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1040	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
731		1041
732	Generate an object-specific event with the given arguments.	1042	Generate an object-specific event with the given arguments.
733		1043
734	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1044	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
735	removed in future versions), and there is no public API to access override	1045	removed in future versions), and there is no public API to access override
736	results (if you must, access C<@cf::invoke_results> directly).	1046	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
737		1047
738	=back	1048	=back
739		1049
740	=cut	1050	=cut
741		1051
742	#############################################################################	1052	#############################################################################
743	# object support	1053	# object support
		1054
		1055	sub _object_equal($$);
		1056	sub _object_equal($$) {
		1057	my ($a, $b) = @_;
		1058
		1059	return 0 unless (ref $a) eq (ref $b);
		1060
		1061	if ("HASH" eq ref $a) {
		1062	my @ka = keys %$a;
		1063	my @kb = keys %$b;
		1064
		1065	return 0 if @ka != @kb;
		1066
		1067	for (0 .. $#ka) {
		1068	return 0 unless $ka[$_] eq $kb[$_];
		1069	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1070	}
		1071
		1072	} elsif ("ARRAY" eq ref $a) {
		1073
		1074	return 0 if @$a != @$b;
		1075
		1076	for (0 .. $#$a) {
		1077	return 0 unless _object_equal $a->[$_], $b->[$_];
		1078	}
		1079
		1080	} elsif ($a ne $b) {
		1081	return 0;
		1082	}
		1083
		1084	1
		1085	}
		1086
		1087	our $SLOW_MERGES;#d#
		1088	sub _can_merge {
		1089	my ($ob1, $ob2) = @_;
		1090
		1091	++$SLOW_MERGES;#d#
		1092
		1093	# we do the slow way here
		1094	return _object_equal $ob1, $ob2
		1095	}
744		1096
745	sub reattach {	1097	sub reattach {
746	# basically do the same as instantiate, without calling instantiate	1098	# basically do the same as instantiate, without calling instantiate
747	my ($obj) = @_;	1099	my ($obj) = @_;
748		1100
		1101	# no longer needed after getting rid of delete_package?
749	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1102	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
750		1103
751	my $registry = $obj->registry;	1104	my $registry = $obj->registry;
752		1105
753	@$registry = ();	1106	@$registry = ();
754		1107
…		…
769	cf::attachable->attach (	1122	cf::attachable->attach (
770	prio => -1000000,	1123	prio => -1000000,
771	on_instantiate => sub {	1124	on_instantiate => sub {
772	my ($obj, $data) = @_;	1125	my ($obj, $data) = @_;
773		1126
774	$data = from_json $data;	1127	$data = decode_json $data;
775		1128
776	for (@$data) {	1129	for (@$data) {
777	my ($name, $args) = @$_;	1130	my ($name, $args) = @$_;
778		1131
779	$obj->attach ($name, %{$args || {} });	1132	$obj->attach ($name, %{$args || {} });
…		…
795	sub object_freezer_save {	1148	sub object_freezer_save {
796	my ($filename, $rdata, $objs) = @_;	1149	my ($filename, $rdata, $objs) = @_;
797		1150
798	sync_job {	1151	sync_job {
799	if (length $$rdata) {	1152	if (length $$rdata) {
		1153	utf8::decode (my $decname = $filename);
800	warn sprintf "saving %s (%d,%d)\n",	1154	warn sprintf "saving %s (%d,%d)\n",
801	$filename, length $$rdata, scalar @$objs;	1155	$decname, length $$rdata, scalar @$objs;
802		1156
803	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1157	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
804	chmod SAVE_MODE, $fh;	1158	aio_chmod $fh, SAVE_MODE;
805	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1159	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
806	aio_fsync $fh if $cf::USE_FSYNC;	1160	if ($cf::USE_FSYNC) {
		1161	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1162	aio_fsync $fh;
		1163	}
807	close $fh;	1164	aio_close $fh;
808		1165
809	if (@$objs) {	1166	if (@$objs) {
810	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1167	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
811	chmod SAVE_MODE, $fh;	1168	aio_chmod $fh, SAVE_MODE;
812	my $data = Storable::nfreeze { version => 1, objs => $objs };	1169	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
813	aio_write $fh, 0, (length $data), $data, 0;	1170	aio_write $fh, 0, (length $data), $data, 0;
814	aio_fsync $fh if $cf::USE_FSYNC;	1171	if ($cf::USE_FSYNC) {
		1172	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1173	aio_fsync $fh;
		1174	}
815	close $fh;	1175	aio_close $fh;
816	aio_rename "$filename.pst~", "$filename.pst";	1176	aio_rename "$filename.pst~", "$filename.pst";
817	}	1177	}
818	} else {	1178	} else {
819	aio_unlink "$filename.pst";	1179	aio_unlink "$filename.pst";
820	}	1180	}
821		1181
822	aio_rename "$filename~", $filename;	1182	aio_rename "$filename~", $filename;
		1183
		1184	$filename =~ s%/[^/]+$%%;
		1185	aio_pathsync $filename if $cf::USE_FSYNC;
823	} else {	1186	} else {
824	warn "FATAL: $filename~: $!\n";	1187	warn "unable to save objects: $filename~: $!\n";
825	}	1188	}
826	} else {	1189	} else {
827	aio_unlink $filename;	1190	aio_unlink $filename;
828	aio_unlink "$filename.pst";	1191	aio_unlink "$filename.pst";
829	}	1192	}
830	}	1193	};
831	}	1194	}
832		1195
833	sub object_freezer_as_string {	1196	sub object_freezer_as_string {
834	my ($rdata, $objs) = @_;	1197	my ($rdata, $objs) = @_;
835		1198
…		…
847	or return;	1210	or return;
848		1211
849	unless (aio_stat "$filename.pst") {	1212	unless (aio_stat "$filename.pst") {
850	(aio_load "$filename.pst", $av) >= 0	1213	(aio_load "$filename.pst", $av) >= 0
851	or return;	1214	or return;
		1215
852	$av = eval { (Storable::thaw $av)->{objs} };	1216	my $st = eval { Coro::Storable::thaw $av };
		1217	$av = $st->{objs};
853	}	1218	}
854		1219
		1220	utf8::decode (my $decname = $filename);
855	warn sprintf "loading %s (%d)\n",	1221	warn sprintf "loading %s (%d,%d)\n",
856	$filename, length $data, scalar @{$av || []};#d#	1222	$decname, length $data, scalar @{$av || []};
		1223
857	return ($data, $av);	1224	($data, $av)
858	}	1225	}
		1226
		1227	=head2 COMMAND CALLBACKS
		1228
		1229	=over 4
		1230
		1231	=cut
859		1232
860	#############################################################################	1233	#############################################################################
861	# command handling &c	1234	# command handling &c
862		1235
863	=item cf::register_command $name => \&callback($ob,$args);	1236	=item cf::register_command $name => \&callback($ob,$args);
…		…
876	push @{ $COMMAND{$name} }, [$caller, $cb];	1249	push @{ $COMMAND{$name} }, [$caller, $cb];
877	}	1250	}
878		1251
879	=item cf::register_extcmd $name => \&callback($pl,$packet);	1252	=item cf::register_extcmd $name => \&callback($pl,$packet);
880		1253
881	Register a callbackf ro execution when the client sends an extcmd packet.	1254	Register a callback for execution when the client sends an (synchronous)
		1255	extcmd packet. Ext commands will be processed in the order they are
		1256	received by the server, like other user commands. The first argument is
		1257	the logged-in player. Ext commands can only be processed after a player
		1258	has logged in successfully.
882		1259
883	If the callback returns something, it is sent back as if reply was being	1260	If the callback returns something, it is sent back as if reply was being
884	called.	1261	called.
885		1262
		1263	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1264
		1265	Register a callback for execution when the client sends an (asynchronous)
		1266	exticmd packet. Exti commands are processed by the server as soon as they
		1267	are received, i.e. out of order w.r.t. other commands. The first argument
		1268	is a client socket. Exti commands can be received anytime, even before
		1269	log-in.
		1270
		1271	If the callback returns something, it is sent back as if reply was being
		1272	called.
		1273
886	=cut	1274	=cut
887		1275
888	sub register_extcmd {	1276	sub register_extcmd {
889	my ($name, $cb) = @_;	1277	my ($name, $cb) = @_;
890		1278
891	$EXTCMD{$name} = $cb;	1279	$EXTCMD{$name} = $cb;
892	}	1280	}
		1281
		1282	sub register_exticmd {
		1283	my ($name, $cb) = @_;
		1284
		1285	$EXTICMD{$name} = $cb;
		1286	}
		1287
		1288	use File::Glob ();
893		1289
894	cf::player->attach (	1290	cf::player->attach (
895	on_command => sub {	1291	on_command => sub {
896	my ($pl, $name, $params) = @_;	1292	my ($pl, $name, $params) = @_;
897		1293
…		…
905	cf::override;	1301	cf::override;
906	},	1302	},
907	on_extcmd => sub {	1303	on_extcmd => sub {
908	my ($pl, $buf) = @_;	1304	my ($pl, $buf) = @_;
909		1305
910	my $msg = eval { from_json $buf };	1306	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
911		1307
912	if (ref $msg) {	1308	if (ref $msg) {
		1309	my ($type, $reply, @payload) =
		1310	"ARRAY" eq ref $msg
		1311	? @$msg
		1312	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1313
		1314	my @reply;
		1315
913	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1316	if (my $cb = $EXTCMD{$type}) {
914	if (my %reply = $cb->($pl, $msg)) {	1317	@reply = $cb->($pl, @payload);
915	$pl->ext_reply ($msg->{msgid}, %reply);
916	}
917	}	1318	}
		1319
		1320	$pl->ext_reply ($reply, @reply)
		1321	if $reply;
		1322
918	} else {	1323	} else {
919	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1324	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
920	}	1325	}
921		1326
922	cf::override;	1327	cf::override;
923	},	1328	},
924	);	1329	);
925		1330
		1331	# "readahead" all extensions
926	sub load_extension {	1332	sub cache_extensions {
927	my ($path) = @_;	1333	my $grp = IO::AIO::aio_group;
928		1334
929	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1335	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
930	my $base = $1;	1336	for (grep /\.ext$/, @{$_[0]}) {
931	my $pkg = $1;	1337	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
932	$pkg =~ s/[^[:word:]]/_/g;
933	$pkg = "ext::$pkg";
934
935	warn "... loading '$path' into '$pkg'\n";
936
937	open my $fh, "<:utf8", $path
938	or die "$path: $!";
939
940	my $source =
941	"package $pkg; use strict; use utf8;\n"
942	. "#line 1 \"$path\"\n{\n"
943	. (do { local $/; <$fh> })
944	. "\n};\n1";
945
946	unless (eval $source) {
947	my $msg = $@ ? "$path: $@\n"
948	: "extension disabled.\n";
949	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
950	warn $@;
951	warn "mandatory extension failed to load, exiting.\n";
952	exit 1;
953	}	1338	}
954	die $@;
955	}	1339	};
956		1340
957	push @EXTS, $pkg;	1341	$grp
958	}	1342	}
959		1343
960	sub load_extensions {	1344	sub load_extensions {
		1345	cf::sync_job {
		1346	my %todo;
		1347
961	for my $ext (<$LIBDIR/*.ext>) {	1348	for my $path (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	1349	next unless -r $path;
963	eval {	1350
964	load_extension $ext;	1351	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1352	my $base = $1;
		1353	my $pkg = $1;
		1354	$pkg =~ s/[^[:word:]]/_/g;
		1355	$pkg = "ext::$pkg";
		1356
		1357	open my $fh, "<:utf8", $path
		1358	or die "$path: $!";
		1359
		1360	my $source = do { local $/; <$fh> };
		1361
		1362	my %ext = (
		1363	path => $path,
		1364	base => $base,
		1365	pkg => $pkg,
		1366	);
		1367
		1368	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1369	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1370
		1371	$ext{source} =
		1372	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1373	. "#line 1 \"$path\"\n{\n"
		1374	. $source
		1375	. "\n};\n1";
		1376
		1377	$todo{$base} = \%ext;
		1378	}
		1379
		1380	my %done;
		1381	while (%todo) {
		1382	my $progress;
		1383
		1384	while (my ($k, $v) = each %todo) {
		1385	for (split /,\s*/, $v->{meta}{depends}) {
		1386	goto skip
		1387	unless exists $done{$_};
		1388	}
		1389
		1390	warn "... loading '$k' into '$v->{pkg}'\n";
		1391
		1392	unless (eval $v->{source}) {
		1393	my $msg = $@ ? "$v->{path}: $@\n"
		1394	: "$v->{base}: extension inactive.\n";
		1395
		1396	if (exists $v->{meta}{mandatory}) {
		1397	warn $msg;
		1398	cf::cleanup "mandatory extension failed to load, exiting.";
		1399	}
		1400
		1401	warn $msg;
		1402	}
		1403
		1404	$done{$k} = delete $todo{$k};
		1405	push @EXTS, $v->{pkg};
		1406	$progress = 1;
965	1	1407	}
966	} or warn "$ext not loaded: $@";	1408
		1409	skip:
		1410	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1411	unless $progress;
		1412	}
967	}	1413	};
968	}	1414	}
969		1415
970	#############################################################################	1416	#############################################################################
971		1417
		1418	=back
		1419
972	=head2 CORE EXTENSIONS	1420	=head2 CORE EXTENSIONS
973		1421
974	Functions and methods that extend core crossfire objects.	1422	Functions and methods that extend core deliantra objects.
975		1423
976	=cut	1424	=cut
977		1425
978	package cf::player;	1426	package cf::player;
979		1427
980	use Coro::AIO;	1428	use Coro::AIO;
981		1429
982	=head3 cf::player	1430	=head3 cf::player
983		1431
984	=over 4	1432	=over 4
		1433
		1434	=item cf::player::num_playing
		1435
		1436	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1437
		1438	=cut
		1439
		1440	sub num_playing {
		1441	scalar grep
		1442	$_->ob->map
		1443	&& !$_->hidden
		1444	&& !$_->ob->flag (cf::FLAG_WIZ),
		1445	cf::player::list
		1446	}
985		1447
986	=item cf::player::find $login	1448	=item cf::player::find $login
987		1449
988	Returns the given player object, loading it if necessary (might block).	1450	Returns the given player object, loading it if necessary (might block).
989		1451
…		…
1008		1470
1009	sub exists($) {	1471	sub exists($) {
1010	my ($login) = @_;	1472	my ($login) = @_;
1011		1473
1012	$cf::PLAYER{$login}	1474	$cf::PLAYER{$login}
1013	or cf::sync_job { !aio_stat path $login }	1475	or !aio_stat path $login
1014	}	1476	}
1015		1477
1016	sub find($) {	1478	sub find($) {
1017	return $cf::PLAYER{$_[0]} || do {	1479	return $cf::PLAYER{$_[0]} || do {
1018	my $login = $_[0];	1480	my $login = $_[0];
…		…
1025	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1487	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1026	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1488	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1027	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1489	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1028	aio_unlink +(playerdir $login) . "/$login.pl";	1490	aio_unlink +(playerdir $login) . "/$login.pl";
1029		1491
1030	my $pl = load_pl path $login	1492	my $f = new_from_file cf::object::thawer path $login
1031	or return;	1493	or return;
		1494
		1495	my $pl = cf::player::load_pl $f
		1496	or return;
		1497
		1498	local $cf::PLAYER_LOADING{$login} = $pl;
		1499	$f->resolve_delayed_derefs;
1032	$cf::PLAYER{$login} = $pl	1500	$cf::PLAYER{$login} = $pl
1033	}	1501	}
1034	}	1502	}
1035	}	1503	}
1036		1504
…		…
1045	return if $pl->{deny_save};	1513	return if $pl->{deny_save};
1046		1514
1047	aio_mkdir playerdir $pl, 0770;	1515	aio_mkdir playerdir $pl, 0770;
1048	$pl->{last_save} = $cf::RUNTIME;	1516	$pl->{last_save} = $cf::RUNTIME;
1049		1517
		1518	cf::get_slot 0.01;
		1519
1050	$pl->save_pl ($path);	1520	$pl->save_pl ($path);
1051	Coro::cede;	1521	cf::cede_to_tick;
1052	}	1522	}
1053		1523
1054	sub new($) {	1524	sub new($) {
1055	my ($login) = @_;	1525	my ($login) = @_;
1056		1526
…		…
1062	$cf::PLAYER{$login} = $self;	1532	$cf::PLAYER{$login} = $self;
1063		1533
1064	$self	1534	$self
1065	}	1535	}
1066		1536
		1537	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1538
		1539	=cut
		1540
		1541	sub send_msg {
		1542	my $ns = shift->ns
		1543	or return;
		1544	$ns->send_msg (@_);
		1545	}
		1546
1067	=item $pl->quit_character	1547	=item $pl->quit_character
1068		1548
1069	Nukes the player without looking back. If logged in, the connection will	1549	Nukes the player without looking back. If logged in, the connection will
1070	be destroyed. May block for a long time.	1550	be destroyed. May block for a long time.
1071		1551
…		…
1075	my ($pl) = @_;	1555	my ($pl) = @_;
1076		1556
1077	my $name = $pl->ob->name;	1557	my $name = $pl->ob->name;
1078		1558
1079	$pl->{deny_save} = 1;	1559	$pl->{deny_save} = 1;
1080	$pl->password ("*"); # this should lock out the player until we nuked the dir	1560	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1081		1561
1082	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1562	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1083	$pl->deactivate;	1563	$pl->deactivate;
		1564	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1565	$pl->ob->check_score;
1084	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1566	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1085	$pl->ns->destroy if $pl->ns;	1567	$pl->ns->destroy if $pl->ns;
1086		1568
1087	my $path = playerdir $pl;	1569	my $path = playerdir $pl;
1088	my $temp = "$path~$cf::RUNTIME~deleting~";	1570	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1124	or return [];	1606	or return [];
1125		1607
1126	my @logins;	1608	my @logins;
1127		1609
1128	for my $login (@$dirs) {	1610	for my $login (@$dirs) {
		1611	my $path = path $login;
		1612
		1613	# a .pst is a dead give-away for a valid player
		1614	# if no pst file found, open and chekc for blocked users
		1615	if (aio_stat "$path.pst") {
1129	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1616	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1130	aio_read $fh, 0, 512, my $buf, 0 or next;	1617	aio_read $fh, 0, 512, my $buf, 0 or next;
1131	$buf !~ /^password -------------$/m or next; # official not-valid tag	1618	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1619	}
1132		1620
1133	utf8::decode $login;	1621	utf8::decode $login;
1134	push @logins, $login;	1622	push @logins, $login;
1135	}	1623	}
1136		1624
…		…
1163	}	1651	}
1164		1652
1165	\@paths	1653	\@paths
1166	}	1654	}
1167		1655
		1656	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1657
		1658	Expand deliantra pod fragments into protocol xml.
		1659
1168	=item $player->ext_reply ($msgid, %msg)	1660	=item $player->ext_reply ($msgid, @msg)
1169		1661
1170	Sends an ext reply to the player.	1662	Sends an ext reply to the player.
1171		1663
1172	=cut	1664	=cut
1173		1665
1174	sub ext_reply($$%) {	1666	sub ext_reply($$@) {
1175	my ($self, $id, %msg) = @_;	1667	my ($self, $id, @msg) = @_;
1176		1668
1177	$msg{msgid} = $id;	1669	$self->ns->ext_reply ($id, @msg)
1178
1179	$self->send ("ext " . cf::to_json \%msg);
1180	}	1670	}
1181		1671
1182	=item $player->ext_event ($type, %msg)	1672	=item $player->ext_msg ($type, @msg)
1183		1673
1184	Sends an ext event to the client.	1674	Sends an ext event to the client.
1185		1675
1186	=cut	1676	=cut
1187		1677
1188	sub ext_event($$%) {	1678	sub ext_msg($$@) {
1189	my ($self, $type, %msg) = @_;	1679	my ($self, $type, @msg) = @_;
1190		1680
1191	$self->ns->ext_event ($type, %msg);	1681	$self->ns->ext_msg ($type, @msg);
1192	}	1682	}
1193		1683
1194	=head3 cf::region	1684	=head3 cf::region
1195		1685
1196	=over 4	1686	=over 4
…		…
1199		1689
1200	package cf::region;	1690	package cf::region;
1201		1691
1202	=item cf::region::find_by_path $path	1692	=item cf::region::find_by_path $path
1203		1693
1204	Tries to decuce the probable region for a map knowing only its path.	1694	Tries to decuce the likely region for a map knowing only its path.
1205		1695
1206	=cut	1696	=cut
1207		1697
1208	sub find_by_path($) {	1698	sub find_by_path($) {
1209	my ($path) = @_;	1699	my ($path) = @_;
1210		1700
1211	my ($match, $specificity);	1701	my ($match, $specificity);
1212		1702
1213	for my $region (list) {	1703	for my $region (list) {
1214	if ($region->match && $path =~ $region->match) {	1704	if ($region->{match} && $path =~ $region->{match}) {
1215	($match, $specificity) = ($region, $region->specificity)	1705	($match, $specificity) = ($region, $region->specificity)
1216	if $region->specificity > $specificity;	1706	if $region->specificity > $specificity;
1217	}	1707	}
1218	}	1708	}
1219		1709
…		…
1240	our $MAX_RESET = 3600;	1730	our $MAX_RESET = 3600;
1241	our $DEFAULT_RESET = 3000;	1731	our $DEFAULT_RESET = 3000;
1242		1732
1243	sub generate_random_map {	1733	sub generate_random_map {
1244	my ($self, $rmp) = @_;	1734	my ($self, $rmp) = @_;
		1735
		1736	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1737
1245	# mit "rum" bekleckern, nicht	1738	# mit "rum" bekleckern, nicht
1246	$self->_create_random_map (	1739	$self->_create_random_map (
1247	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1740	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1248	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1741	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1249	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1742	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1283	my ($self, $merge) = @_;	1776	my ($self, $merge) = @_;
1284		1777
1285	# we have to keep some variables in memory intact	1778	# we have to keep some variables in memory intact
1286	local $self->{path};	1779	local $self->{path};
1287	local $self->{load_path};	1780	local $self->{load_path};
1288	local $self->{deny_save};
1289	local $self->{deny_reset};
1290		1781
1291	$self->SUPER::thawer_merge ($merge);	1782	$self->SUPER::thawer_merge ($merge);
1292	}	1783	}
1293		1784
1294	sub normalise {	1785	sub normalise {
…		…
1341	$self->init; # pass $1 etc.	1832	$self->init; # pass $1 etc.
1342	return $self;	1833	return $self;
1343	}	1834	}
1344	}	1835	}
1345		1836
1346	Carp::carp "unable to resolve path '$path' (base '$base').";	1837	Carp::cluck "unable to resolve path '$path' (base '$base').";
1347	()	1838	()
1348	}	1839	}
1349		1840
1350	sub init {	1841	sub init {
1351	my ($self) = @_;	1842	my ($self) = @_;
…		…
1373		1864
1374	# the temporary/swap location	1865	# the temporary/swap location
1375	sub save_path {	1866	sub save_path {
1376	my ($self) = @_;	1867	my ($self) = @_;
1377		1868
1378	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1869	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1379	"$TMPDIR/$path.map"	1870	"$TMPDIR/$path.map"
1380	}	1871	}
1381		1872
1382	# the unique path, undef == no special unique path	1873	# the unique path, undef == no special unique path
1383	sub uniq_path {	1874	sub uniq_path {
1384	my ($self) = @_;	1875	my ($self) = @_;
1385		1876
1386	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1877	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1387	"$UNIQUEDIR/$path"	1878	"$UNIQUEDIR/$path"
1388	}	1879	}
1389		1880
1390	# and all this just because we cannot iterate over	1881	sub decay_objects {
1391	# all maps in C++...
1392	sub change_all_map_light {
1393	my ($change) = @_;	1882	my ($self) = @_;
1394		1883
1395	$_->change_map_light ($change)	1884	return if $self->{deny_reset};
1396	for grep $_->outdoor, values %cf::MAP;	1885
		1886	$self->do_decay_objects;
1397	}	1887	}
1398		1888
1399	sub unlink_save {	1889	sub unlink_save {
1400	my ($self) = @_;	1890	my ($self) = @_;
1401		1891
…		…
1406		1896
1407	sub load_header_from($) {	1897	sub load_header_from($) {
1408	my ($self, $path) = @_;	1898	my ($self, $path) = @_;
1409		1899
1410	utf8::encode $path;	1900	utf8::encode $path;
1411	#aio_open $path, O_RDONLY, 0	1901	my $f = new_from_file cf::object::thawer $path
1412	# or return;
1413
1414	$self->_load_header ($path)
1415	or return;	1902	or return;
		1903
		1904	$self->_load_header ($f)
		1905	or return;
		1906
		1907	local $MAP_LOADING{$self->{path}} = $self;
		1908	$f->resolve_delayed_derefs;
1416		1909
1417	$self->{load_path} = $path;	1910	$self->{load_path} = $path;
1418		1911
1419	1	1912	1
1420	}	1913	}
…		…
1459	$self->load_header_orig	1952	$self->load_header_orig
1460	or return;	1953	or return;
1461	$self->prepare_orig;	1954	$self->prepare_orig;
1462	}	1955	}
1463		1956
		1957	$self->{deny_reset} = 1
		1958	if $self->no_reset;
		1959
1464	$self->default_region (cf::region::find_by_path $self->{path})	1960	$self->default_region (cf::region::find_by_path $self->{path})
1465	unless $self->default_region;	1961	unless $self->default_region;
1466		1962
1467	1	1963	1
1468	}	1964	}
…		…
1471	sub find {	1967	sub find {
1472	my ($path, $origin) = @_;	1968	my ($path, $origin) = @_;
1473		1969
1474	$path = normalise $path, $origin && $origin->path;	1970	$path = normalise $path, $origin && $origin->path;
1475		1971
		1972	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1476	cf::lock_wait "map_find:$path";	1973	my $guard2 = cf::lock_acquire "map_find:$path";
1477		1974
1478	$cf::MAP{$path} || do {	1975	$cf::MAP{$path} || do {
1479	my $guard = cf::lock_acquire "map_find:$path";
1480	my $map = new_from_path cf::map $path	1976	my $map = new_from_path cf::map $path
1481	or return;	1977	or return;
1482		1978
1483	$map->{last_save} = $cf::RUNTIME;	1979	$map->{last_save} = $cf::RUNTIME;
1484		1980
1485	$map->load_header	1981	$map->load_header
1486	or return;	1982	or return;
1487		1983
1488	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1984	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1489	# doing this can freeze the server in a sync job, obviously	1985	# doing this can freeze the server in a sync job, obviously
1490	#$cf::WAIT_FOR_TICK->wait;	1986	#$cf::WAIT_FOR_TICK->wait;
		1987	undef $guard2;
		1988	undef $guard1;
1491	$map->reset;	1989	$map->reset;
1492	undef $guard;
1493	return find $path;	1990	return find $path;
1494	}	1991	}
1495		1992
1496	$cf::MAP{$path} = $map	1993	$cf::MAP{$path} = $map
1497	}	1994	}
…		…
1506	local $self->{deny_reset} = 1; # loading can take a long time	2003	local $self->{deny_reset} = 1; # loading can take a long time
1507		2004
1508	my $path = $self->{path};	2005	my $path = $self->{path};
1509		2006
1510	{	2007	{
1511	my $guard = cf::lock_acquire "map_load:$path";	2008	my $guard = cf::lock_acquire "map_data:$path";
1512		2009
		2010	return unless $self->valid;
1513	return if $self->in_memory != cf::MAP_SWAPPED;	2011	return unless $self->in_memory == cf::MAP_SWAPPED;
1514		2012
1515	$self->in_memory (cf::MAP_LOADING);	2013	$self->in_memory (cf::MAP_LOADING);
1516		2014
1517	$self->alloc;	2015	$self->alloc;
1518		2016
1519	$self->pre_load;	2017	$self->pre_load;
1520	Coro::cede;	2018	cf::cede_to_tick;
1521		2019
		2020	my $f = new_from_file cf::object::thawer $self->{load_path};
		2021	$f->skip_block;
1522	$self->_load_objects ($self->{load_path}, 1)	2022	$self->_load_objects ($f)
1523	or return;	2023	or return;
1524		2024
1525	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2025	$self->post_load_original
1526	if delete $self->{load_original};	2026	if delete $self->{load_original};
1527		2027
1528	if (my $uniq = $self->uniq_path) {	2028	if (my $uniq = $self->uniq_path) {
1529	utf8::encode $uniq;	2029	utf8::encode $uniq;
1530	if (aio_open $uniq, O_RDONLY, 0) {	2030	unless (aio_stat $uniq) {
		2031	if (my $f = new_from_file cf::object::thawer $uniq) {
1531	$self->clear_unique_items;	2032	$self->clear_unique_items;
1532	$self->_load_objects ($uniq, 0);	2033	$self->_load_objects ($f);
		2034	$f->resolve_delayed_derefs;
		2035	}
1533	}	2036	}
1534	}	2037	}
1535		2038
1536	Coro::cede;	2039	$f->resolve_delayed_derefs;
		2040
		2041	cf::cede_to_tick;
1537	# now do the right thing for maps	2042	# now do the right thing for maps
1538	$self->link_multipart_objects;	2043	$self->link_multipart_objects;
1539	$self->difficulty ($self->estimate_difficulty)	2044	$self->difficulty ($self->estimate_difficulty)
1540	unless $self->difficulty;	2045	unless $self->difficulty;
1541	Coro::cede;	2046	cf::cede_to_tick;
1542		2047
1543	unless ($self->{deny_activate}) {	2048	unless ($self->{deny_activate}) {
1544	$self->decay_objects;	2049	$self->decay_objects;
1545	$self->fix_auto_apply;	2050	$self->fix_auto_apply;
1546	$self->update_buttons;	2051	$self->update_buttons;
1547	Coro::cede;	2052	cf::cede_to_tick;
1548	$self->set_darkness_map;
1549	Coro::cede;
1550	$self->activate;	2053	$self->activate;
1551	}	2054	}
1552		2055
		2056	$self->{last_save} = $cf::RUNTIME;
		2057	$self->last_access ($cf::RUNTIME);
		2058
1553	$self->in_memory (cf::MAP_IN_MEMORY);	2059	$self->in_memory (cf::MAP_ACTIVE);
1554	}	2060	}
1555		2061
1556	$self->post_load;	2062	$self->post_load;
1557	}	2063	}
1558		2064
…		…
1560	my ($self, $ob) = @_;	2066	my ($self, $ob) = @_;
1561		2067
1562	return find "~" . $ob->name . "/" . $self->{path}	2068	return find "~" . $ob->name . "/" . $self->{path}
1563	if $self->per_player;	2069	if $self->per_player;
1564		2070
		2071	# return find "?party/" . $ob->name . "/" . $self->{path}
		2072	# if $self->per_party;
		2073
1565	$self	2074	$self
1566	}	2075	}
1567		2076
1568	# find and load all maps in the 3x3 area around a map	2077	# find and load all maps in the 3x3 area around a map
1569	sub load_diag {	2078	sub load_neighbours {
1570	my ($map) = @_;	2079	my ($map) = @_;
1571		2080
1572	my @diag; # diagonal neighbours	2081	my @neigh; # diagonal neighbours
1573		2082
1574	for (0 .. 3) {	2083	for (0 .. 3) {
1575	my $neigh = $map->tile_path ($_)	2084	my $neigh = $map->tile_path ($_)
1576	or next;	2085	or next;
1577	$neigh = find $neigh, $map	2086	$neigh = find $neigh, $map
1578	or next;	2087	or next;
1579	$neigh->load;	2088	$neigh->load;
1580		2089
		2090	push @neigh,
1581	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2091	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1582	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2092	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1583	}	2093	}
1584		2094
1585	for (@diag) {	2095	for (grep defined $_->[0], @neigh) {
		2096	my ($path, $origin) = @$_;
1586	my $neigh = find @$_	2097	my $neigh = find $path, $origin
1587	or next;	2098	or next;
1588	$neigh->load;	2099	$neigh->load;
1589	}	2100	}
1590	}	2101	}
1591		2102
…		…
1596	}	2107	}
1597		2108
1598	sub do_load_sync {	2109	sub do_load_sync {
1599	my ($map) = @_;	2110	my ($map) = @_;
1600		2111
		2112	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2113	if $Coro::current == $Coro::main;
		2114
1601	cf::sync_job { $map->load };	2115	cf::sync_job { $map->load };
1602	}	2116	}
1603		2117
1604	our %MAP_PREFETCH;	2118	our %MAP_PREFETCH;
1605	our $MAP_PREFETCHER = undef;	2119	our $MAP_PREFETCHER = undef;
1606		2120
1607	sub find_async {	2121	sub find_async {
1608	my ($path, $origin) = @_;	2122	my ($path, $origin, $load) = @_;
1609		2123
1610	$path = normalise $path, $origin && $origin->{path};	2124	$path = normalise $path, $origin && $origin->{path};
1611		2125
1612	if (my $map = $cf::MAP{$path}) {	2126	if (my $map = $cf::MAP{$path}) {
1613	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2127	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1614	}	2128	}
1615		2129
1616	undef $MAP_PREFETCH{$path};	2130	$MAP_PREFETCH{$path} |= $load;
		2131
1617	$MAP_PREFETCHER ||= cf::async {	2132	$MAP_PREFETCHER ||= cf::async {
		2133	$Coro::current->{desc} = "map prefetcher";
		2134
1618	while (%MAP_PREFETCH) {	2135	while (%MAP_PREFETCH) {
1619	for my $path (keys %MAP_PREFETCH) {	2136	while (my ($k, $v) = each %MAP_PREFETCH) {
1620	my $map = find $path	2137	if (my $map = find $k) {
1621	or next;
1622	$map->load;	2138	$map->load if $v;
		2139	}
1623		2140
1624	delete $MAP_PREFETCH{$path};	2141	delete $MAP_PREFETCH{$k};
1625	}	2142	}
1626	}	2143	}
1627	undef $MAP_PREFETCHER;	2144	undef $MAP_PREFETCHER;
1628	};	2145	};
1629	$MAP_PREFETCHER->prio (6);	2146	$MAP_PREFETCHER->prio (6);
…		…
1632	}	2149	}
1633		2150
1634	sub save {	2151	sub save {
1635	my ($self) = @_;	2152	my ($self) = @_;
1636		2153
1637	my $lock = cf::lock_acquire "map_data:" . $self->path;	2154	my $lock = cf::lock_acquire "map_data:$self->{path}";
1638		2155
1639	$self->{last_save} = $cf::RUNTIME;	2156	$self->{last_save} = $cf::RUNTIME;
1640		2157
1641	return unless $self->dirty;	2158	return unless $self->dirty;
1642		2159
…		…
1648	return if $self->{deny_save};	2165	return if $self->{deny_save};
1649		2166
1650	local $self->{last_access} = $self->last_access;#d#	2167	local $self->{last_access} = $self->last_access;#d#
1651		2168
1652	cf::async {	2169	cf::async {
		2170	$Coro::current->{desc} = "map player save";
1653	$_->contr->save for $self->players;	2171	$_->contr->save for $self->players;
1654	};	2172	};
		2173
		2174	cf::get_slot 0.02;
1655		2175
1656	if ($uniq) {	2176	if ($uniq) {
1657	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2177	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1658	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2178	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1659	} else {	2179	} else {
…		…
1665	my ($self) = @_;	2185	my ($self) = @_;
1666		2186
1667	# save first because save cedes	2187	# save first because save cedes
1668	$self->save;	2188	$self->save;
1669		2189
1670	my $lock = cf::lock_acquire "map_data:" . $self->path;	2190	my $lock = cf::lock_acquire "map_data:$self->{path}";
1671		2191
1672	return if $self->players;	2192	return if $self->players;
1673	return if $self->in_memory != cf::MAP_IN_MEMORY;	2193	return if $self->in_memory != cf::MAP_ACTIVE;
1674	return if $self->{deny_save};	2194	return if $self->{deny_save};
1675		2195
		2196	$self->in_memory (cf::MAP_SWAPPED);
		2197
		2198	$self->deactivate;
		2199	$_->clear_links_to ($self) for values %cf::MAP;
1676	$self->clear;	2200	$self->clear;
1677	$self->in_memory (cf::MAP_SWAPPED);
1678	}	2201	}
1679		2202
1680	sub reset_at {	2203	sub reset_at {
1681	my ($self) = @_;	2204	my ($self) = @_;
1682		2205
1683	# TODO: safety, remove and allow resettable per-player maps	2206	# TODO: safety, remove and allow resettable per-player maps
1684	return 1e99 if $self->isa ("ext::map_per_player");#d#
1685	return 1e99 if $self->{deny_reset};	2207	return 1e99 if $self->{deny_reset};
1686		2208
1687	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2209	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1688	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2210	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1689		2211
…		…
1700	my ($self) = @_;	2222	my ($self) = @_;
1701		2223
1702	my $lock = cf::lock_acquire "map_data:$self->{path}";	2224	my $lock = cf::lock_acquire "map_data:$self->{path}";
1703		2225
1704	return if $self->players;	2226	return if $self->players;
1705	return if $self->isa ("ext::map_per_player");#d#
1706		2227
1707	warn "resetting map ", $self->path;#d#	2228	warn "resetting map ", $self->path;
1708		2229
1709	$self->in_memory (cf::MAP_SWAPPED);	2230	$self->in_memory (cf::MAP_SWAPPED);
1710		2231
1711	# need to save uniques path	2232	# need to save uniques path
1712	unless ($self->{deny_save}) {	2233	unless ($self->{deny_save}) {
…		…
1716	if $uniq;	2237	if $uniq;
1717	}	2238	}
1718		2239
1719	delete $cf::MAP{$self->path};	2240	delete $cf::MAP{$self->path};
1720		2241
		2242	$self->deactivate;
		2243	$_->clear_links_to ($self) for values %cf::MAP;
1721	$self->clear;	2244	$self->clear;
1722
1723	$_->clear_links_to ($self) for values %cf::MAP;
1724		2245
1725	$self->unlink_save;	2246	$self->unlink_save;
1726	$self->destroy;	2247	$self->destroy;
1727	}	2248	}
1728		2249
1729	my $nuke_counter = "aaaa";	2250	my $nuke_counter = "aaaa";
1730		2251
1731	sub nuke {	2252	sub nuke {
1732	my ($self) = @_;	2253	my ($self) = @_;
1733		2254
		2255	{
		2256	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2257
1734	delete $cf::MAP{$self->path};	2258	delete $cf::MAP{$self->path};
1735		2259
1736	$self->unlink_save;	2260	$self->unlink_save;
1737		2261
1738	bless $self, "cf::map";	2262	bless $self, "cf::map";
1739	delete $self->{deny_reset};	2263	delete $self->{deny_reset};
1740	$self->{deny_save} = 1;	2264	$self->{deny_save} = 1;
1741	$self->reset_timeout (1);	2265	$self->reset_timeout (1);
1742	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2266	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1743		2267
1744	$cf::MAP{$self->path} = $self;	2268	$cf::MAP{$self->path} = $self;
		2269	}
1745		2270
1746	$self->reset; # polite request, might not happen	2271	$self->reset; # polite request, might not happen
		2272	}
		2273
		2274	=item $maps = cf::map::tmp_maps
		2275
		2276	Returns an arrayref with all map paths of currently instantiated and saved
		2277	maps. May block.
		2278
		2279	=cut
		2280
		2281	sub tmp_maps() {
		2282	[
		2283	map {
		2284	utf8::decode $_;
		2285	/\.map$/
		2286	? normalise $_
		2287	: ()
		2288	} @{ aio_readdir $TMPDIR or [] }
		2289	]
		2290	}
		2291
		2292	=item $maps = cf::map::random_maps
		2293
		2294	Returns an arrayref with all map paths of currently instantiated and saved
		2295	random maps. May block.
		2296
		2297	=cut
		2298
		2299	sub random_maps() {
		2300	[
		2301	map {
		2302	utf8::decode $_;
		2303	/\.map$/
		2304	? normalise "?random/$_"
		2305	: ()
		2306	} @{ aio_readdir $RANDOMDIR or [] }
		2307	]
1747	}	2308	}
1748		2309
1749	=item cf::map::unique_maps	2310	=item cf::map::unique_maps
1750		2311
1751	Returns an arrayref of paths of all shared maps that have	2312	Returns an arrayref of paths of all shared maps that have
1752	instantiated unique items. May block.	2313	instantiated unique items. May block.
1753		2314
1754	=cut	2315	=cut
1755		2316
1756	sub unique_maps() {	2317	sub unique_maps() {
1757	my $files = aio_readdir $UNIQUEDIR	2318	[
1758	or return;	2319	map {
1759
1760	my @paths;
1761
1762	for (@$files) {
1763	utf8::decode $_;	2320	utf8::decode $_;
1764	next if /\.pst$/;	2321	s/\.map$//; # TODO future compatibility hack
1765	next unless /^$PATH_SEP/o;	2322	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1766		2323	? ()
1767	push @paths, cf::map::normalise $_;	2324	: normalise $_
		2325	} @{ aio_readdir $UNIQUEDIR or [] }
1768	}	2326	]
1769
1770	\@paths
1771	}	2327	}
1772
1773	package cf;
1774		2328
1775	=back	2329	=back
1776		2330
1777	=head3 cf::object	2331	=head3 cf::object
1778		2332
…		…
1782		2336
1783	=over 4	2337	=over 4
1784		2338
1785	=item $ob->inv_recursive	2339	=item $ob->inv_recursive
1786		2340
1787	Returns the inventory of the object _and_ their inventories, recursively.	2341	Returns the inventory of the object I<and> their inventories, recursively,
		2342	but I<not> the object itself.
1788		2343
1789	=cut	2344	=cut
1790		2345
1791	sub inv_recursive_;	2346	sub inv_recursive_;
1792	sub inv_recursive_ {	2347	sub inv_recursive_ {
…		…
1795		2350
1796	sub inv_recursive {	2351	sub inv_recursive {
1797	inv_recursive_ inv $_[0]	2352	inv_recursive_ inv $_[0]
1798	}	2353	}
1799		2354
		2355	=item $ref = $ob->ref
		2356
		2357	Creates and returns a persistent reference to an object that can be stored as a string.
		2358
		2359	=item $ob = cf::object::deref ($refstring)
		2360
		2361	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2362	even if the object actually exists. May block.
		2363
		2364	=cut
		2365
		2366	sub deref {
		2367	my ($ref) = @_;
		2368
		2369	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2370	my ($uuid, $name) = ($1, $2);
		2371	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2372	or return;
		2373	$pl->ob->uuid eq $uuid
		2374	or return;
		2375
		2376	$pl->ob
		2377	} else {
		2378	warn "$ref: cannot resolve object reference\n";
		2379	undef
		2380	}
		2381	}
		2382
1800	package cf;	2383	package cf;
1801		2384
1802	=back	2385	=back
1803		2386
1804	=head3 cf::object::player	2387	=head3 cf::object::player
…		…
1810	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2393	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1811	can be C<undef>. Does the right thing when the player is currently in a	2394	can be C<undef>. Does the right thing when the player is currently in a
1812	dialogue with the given NPC character.	2395	dialogue with the given NPC character.
1813		2396
1814	=cut	2397	=cut
		2398
		2399	our $SAY_CHANNEL = {
		2400	id => "say",
		2401	title => "Map",
		2402	reply => "say ",
		2403	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2404	};
		2405
		2406	our $CHAT_CHANNEL = {
		2407	id => "chat",
		2408	title => "Chat",
		2409	reply => "chat ",
		2410	tooltip => "Player chat and shouts, global to the server.",
		2411	};
1815		2412
1816	# rough implementation of a future "reply" method that works	2413	# rough implementation of a future "reply" method that works
1817	# with dialog boxes.	2414	# with dialog boxes.
1818	#TODO: the first argument must go, split into a $npc->reply_to ( method	2415	#TODO: the first argument must go, split into a $npc->reply_to ( method
1819	sub cf::object::player::reply($$$;$) {	2416	sub cf::object::player::reply($$$;$) {
…		…
1821		2418
1822	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2419	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1823		2420
1824	if ($self->{record_replies}) {	2421	if ($self->{record_replies}) {
1825	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2422	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2423
1826	} else {	2424	} else {
		2425	my $pl = $self->contr;
		2426
		2427	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2428	my $dialog = $pl->{npc_dialog};
		2429	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2430
		2431	} else {
1827	$msg = $npc->name . " says: $msg" if $npc;	2432	$msg = $npc->name . " says: $msg" if $npc;
1828	$self->message ($msg, $flags);	2433	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2434	}
1829	}	2435	}
		2436	}
		2437
		2438	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2439
		2440	=cut
		2441
		2442	sub cf::object::send_msg {
		2443	my $pl = shift->contr
		2444	or return;
		2445	$pl->send_msg (@_);
1830	}	2446	}
1831		2447
1832	=item $player_object->may ("access")	2448	=item $player_object->may ("access")
1833		2449
1834	Returns wether the given player is authorized to access resource "access"	2450	Returns wether the given player is authorized to access resource "access"
…		…
1847		2463
1848	=item $player_object->enter_link	2464	=item $player_object->enter_link
1849		2465
1850	Freezes the player and moves him/her to a special map (C<{link}>).	2466	Freezes the player and moves him/her to a special map (C<{link}>).
1851		2467
1852	The player should be reasonably safe there for short amounts of time. You	2468	The player should be reasonably safe there for short amounts of time (e.g.
1853	I<MUST> call C<leave_link> as soon as possible, though.	2469	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2470	though, as the palyer cannot control the character while it is on the link
		2471	map.
1854		2472
1855	Will never block.	2473	Will never block.
1856		2474
1857	=item $player_object->leave_link ($map, $x, $y)	2475	=item $player_object->leave_link ($map, $x, $y)
1858		2476
…		…
1881	$self->deactivate_recursive;	2499	$self->deactivate_recursive;
1882		2500
1883	return if UNIVERSAL::isa $self->map, "ext::map_link";	2501	return if UNIVERSAL::isa $self->map, "ext::map_link";
1884		2502
1885	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2503	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1886	if $self->map;	2504	if $self->map && $self->map->{path} ne "{link}";
1887		2505
1888	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2506	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1889	}	2507	}
1890		2508
1891	sub cf::object::player::leave_link {	2509	sub cf::object::player::leave_link {
1892	my ($self, $map, $x, $y) = @_;	2510	my ($self, $map, $x, $y) = @_;
		2511
		2512	return unless $self->contr->active;
1893		2513
1894	my $link_pos = delete $self->{_link_pos};	2514	my $link_pos = delete $self->{_link_pos};
1895		2515
1896	unless ($map) {	2516	unless ($map) {
1897	# restore original map position	2517	# restore original map position
…		…
1911	# use -1 or undef as default coordinates, not 0, 0	2531	# use -1 or undef as default coordinates, not 0, 0
1912	($x, $y) = ($map->enter_x, $map->enter_y)	2532	($x, $y) = ($map->enter_x, $map->enter_y)
1913	if $x <=0 && $y <= 0;	2533	if $x <=0 && $y <= 0;
1914		2534
1915	$map->load;	2535	$map->load;
1916	$map->load_diag;	2536	$map->load_neighbours;
1917		2537
1918	return unless $self->contr->active;	2538	return unless $self->contr->active;
1919	$self->activate_recursive;
1920		2539
1921	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2540	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1922	$self->enter_map ($map, $x, $y);	2541	$self->enter_map ($map, $x, $y);
1923	}
1924		2542
1925	cf::player->attach (	2543	# only activate afterwards, to support waiting in hooks
1926	on_logout => sub {	2544	$self->activate_recursive;
1927	my ($pl) = @_;	2545	}
1928		2546
1929	# abort map switching before logout	2547	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1930	if ($pl->ob->{_link_pos}) {
1931	cf::sync_job {
1932	$pl->ob->leave_link
1933	};
1934	}
1935	},
1936	on_login => sub {
1937	my ($pl) = @_;
1938		2548
1939	# try to abort aborted map switching on player login :)	2549	Moves the player to the given map-path and coordinates by first freezing
1940	# should happen only on crashes	2550	her, loading and preparing them map, calling the provided $check callback
1941	if ($pl->ob->{_link_pos}) {	2551	that has to return the map if sucecssful, and then unfreezes the player on
1942	$pl->ob->enter_link;	2552	the new (success) or old (failed) map position. In either case, $done will
1943	(async {	2553	be called at the end of this process.
1944	$pl->ob->reply (undef,
1945	"There was an internal problem at your last logout, "
1946	. "the server will try to bring you to your intended destination in a second.",
1947	cf::NDI_RED);
1948	# we need this sleep as the login has a concurrent enter_exit running
1949	# and this sleep increases chances of the player not ending up in scorn
1950	Coro::Timer::sleep 1;
1951	$pl->ob->leave_link;
1952	})->prio (2);
1953	}
1954	},
1955	);
1956		2554
1957	=item $player_object->goto ($path, $x, $y)	2555	Note that $check will be called with a potentially non-loaded map, so if
		2556	it needs a loaded map it has to call C<< ->load >>.
1958		2557
1959	=cut	2558	=cut
		2559
		2560	our $GOTOGEN;
1960		2561
1961	sub cf::object::player::goto {	2562	sub cf::object::player::goto {
1962	my ($self, $path, $x, $y) = @_;	2563	my ($self, $path, $x, $y, $check, $done) = @_;
		2564
		2565	# do generation counting so two concurrent goto's will be executed in-order
		2566	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1963		2567
1964	$self->enter_link;	2568	$self->enter_link;
1965		2569
1966	(async {	2570	(async {
		2571	$Coro::current->{desc} = "player::goto $path $x $y";
		2572
		2573	# *tag paths override both path and x|y
		2574	if ($path =~ /^\*(.*)$/) {
		2575	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2576	my $ob = $obs[rand @obs];
		2577
		2578	# see if we actually can go there
		2579	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2580	$ob = $obs[rand @obs];
		2581	} else {
		2582	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2583	}
		2584	# else put us there anyways for now #d#
		2585
		2586	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2587	} else {
		2588	($path, $x, $y) = (undef, undef, undef);
		2589	}
		2590	}
		2591
1967	my $map = eval {	2592	my $map = eval {
1968	my $map = cf::map::find $path;	2593	my $map = defined $path ? cf::map::find $path : undef;
		2594
		2595	if ($map) {
1969	$map = $map->customise_for ($self) if $map;	2596	$map = $map->customise_for ($self);
		2597	$map = $check->($map) if $check && $map;
		2598	} else {
		2599	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2600	}
		2601
1970	$map	2602	$map
		2603	};
		2604
		2605	if ($@) {
		2606	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2607	LOG llevError | logBacktrace, Carp::longmess $@;
1971	} or	2608	}
1972	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1973		2609
		2610	if ($gen == $self->{_goto_generation}) {
		2611	delete $self->{_goto_generation};
1974	$self->leave_link ($map, $x, $y);	2612	$self->leave_link ($map, $x, $y);
		2613	}
		2614
		2615	$done->() if $done;
1975	})->prio (1);	2616	})->prio (1);
1976	}	2617	}
1977		2618
1978	=item $player_object->enter_exit ($exit_object)	2619	=item $player_object->enter_exit ($exit_object)
1979		2620
…		…
1999	}	2640	}
2000		2641
2001	sub prepare_random_map {	2642	sub prepare_random_map {
2002	my ($exit) = @_;	2643	my ($exit) = @_;
2003		2644
2004	my $guard = cf::lock_acquire "exit_prepare:$exit";
2005
2006	# all this does is basically replace the /! path by	2645	# all this does is basically replace the /! path by
2007	# a new random map path (?random/...) with a seed	2646	# a new random map path (?random/...) with a seed
2008	# that depends on the exit object	2647	# that depends on the exit object
2009		2648
2010	my $rmp = parse_random_map_params $exit->msg;	2649	my $rmp = parse_random_map_params $exit->msg;
…		…
2012	if ($exit->map) {	2651	if ($exit->map) {
2013	$rmp->{region} = $exit->region->name;	2652	$rmp->{region} = $exit->region->name;
2014	$rmp->{origin_map} = $exit->map->path;	2653	$rmp->{origin_map} = $exit->map->path;
2015	$rmp->{origin_x} = $exit->x;	2654	$rmp->{origin_x} = $exit->x;
2016	$rmp->{origin_y} = $exit->y;	2655	$rmp->{origin_y} = $exit->y;
		2656
		2657	$exit->map->touch;
2017	}	2658	}
2018		2659
2019	$rmp->{random_seed} ||= $exit->random_seed;	2660	$rmp->{random_seed} ||= $exit->random_seed;
2020		2661
2021	my $data = cf::to_json $rmp;	2662	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2022	my $md5 = Digest::MD5::md5_hex $data;	2663	my $md5 = Digest::MD5::md5_hex $data;
2023	my $meta = "$RANDOMDIR/$md5.meta";	2664	my $meta = "$RANDOMDIR/$md5.meta";
2024		2665
2025	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2666	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2026	aio_write $fh, 0, (length $data), $data, 0;	2667	aio_write $fh, 0, (length $data), $data, 0;
2027	undef $fh;	2668	undef $fh;
2028	aio_rename "$meta~", $meta;	2669	aio_rename "$meta~", $meta;
2029		2670
		2671	my $slaying = "?random/$md5";
		2672
		2673	if ($exit->valid) {
2030	$exit->slaying ("?random/$md5");	2674	$exit->slaying ("?random/$md5");
2031	$exit->msg (undef);	2675	$exit->msg (undef);
		2676	}
2032	}	2677	}
2033	}	2678	}
2034		2679
2035	sub cf::object::player::enter_exit {	2680	sub cf::object::player::enter_exit {
2036	my ($self, $exit) = @_;	2681	my ($self, $exit) = @_;
2037		2682
2038	return unless $self->type == cf::PLAYER;	2683	return unless $self->type == cf::PLAYER;
2039		2684
2040	if ($exit->slaying eq "/!") {
2041	#TODO: this should de-fi-ni-te-ly not be a sync-job
2042	# the problem is that $exit might not survive long enough
2043	# so it needs to be done right now, right here
2044	cf::sync_job { prepare_random_map $exit };
2045	}
2046
2047	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2048	my $hp = $exit->stats->hp;
2049	my $sp = $exit->stats->sp;
2050
2051	$self->enter_link;	2685	$self->enter_link;
2052		2686
2053	(async {	2687	(async {
2054	$self->deactivate_recursive; # just to be sure	2688	$Coro::current->{desc} = "enter_exit";
		2689
2055	unless (eval {	2690	unless (eval {
		2691	$self->deactivate_recursive; # just to be sure
		2692
		2693	# random map handling
		2694	{
		2695	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2696
		2697	prepare_random_map $exit
		2698	if $exit->slaying eq "/!";
		2699	}
		2700
		2701	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2702	my $x = $exit->stats->hp;
		2703	my $y = $exit->stats->sp;
		2704
2056	$self->goto ($slaying, $hp, $sp);	2705	$self->goto ($map, $x, $y);
2057		2706
		2707	# if exit is damned, update players death & WoR home-position
		2708	$self->contr->savebed ($map, $x, $y)
		2709	if $exit->flag (cf::FLAG_DAMNED);
		2710
2058	1;	2711	1
2059	}) {	2712	}) {
2060	$self->message ("Something went wrong deep within the crossfire server. "	2713	$self->message ("Something went wrong deep within the deliantra server. "
2061	. "I'll try to bring you back to the map you were before. "	2714	. "I'll try to bring you back to the map you were before. "
2062	. "Please report this to the dungeon master!",	2715	. "Please report this to the dungeon master!",
2063	cf::NDI_UNIQUE | cf::NDI_RED);	2716	cf::NDI_UNIQUE | cf::NDI_RED);
2064		2717
2065	warn "ERROR in enter_exit: $@";	2718	warn "ERROR in enter_exit: $@";
…		…
2084		2737
2085	utf8::encode $text;	2738	utf8::encode $text;
2086	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2739	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2087	}	2740	}
2088		2741
		2742	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2743
		2744	Send a drawinfo or msg packet to the client, formatting the msg for the
		2745	client if neccessary. C<$type> should be a string identifying the type of
		2746	the message, with C<log> being the default. If C<$color> is negative, suppress
		2747	the message unless the client supports the msg packet.
		2748
		2749	=cut
		2750
		2751	# non-persistent channels (usually the info channel)
		2752	our %CHANNEL = (
		2753	"c/identify" => {
		2754	id => "infobox",
		2755	title => "Identify",
		2756	reply => undef,
		2757	tooltip => "Items recently identified",
		2758	},
		2759	"c/examine" => {
		2760	id => "infobox",
		2761	title => "Examine",
		2762	reply => undef,
		2763	tooltip => "Signs and other items you examined",
		2764	},
		2765	"c/book" => {
		2766	id => "infobox",
		2767	title => "Book",
		2768	reply => undef,
		2769	tooltip => "The contents of a note or book",
		2770	},
		2771	"c/lookat" => {
		2772	id => "infobox",
		2773	title => "Look",
		2774	reply => undef,
		2775	tooltip => "What you saw there",
		2776	},
		2777	"c/who" => {
		2778	id => "infobox",
		2779	title => "Players",
		2780	reply => undef,
		2781	tooltip => "Shows players who are currently online",
		2782	},
		2783	"c/body" => {
		2784	id => "infobox",
		2785	title => "Body Parts",
		2786	reply => undef,
		2787	tooltip => "Shows which body parts you posess and are available",
		2788	},
		2789	"c/statistics" => {
		2790	id => "infobox",
		2791	title => "Statistics",
		2792	reply => undef,
		2793	tooltip => "Shows your primary statistics",
		2794	},
		2795	"c/skills" => {
		2796	id => "infobox",
		2797	title => "Skills",
		2798	reply => undef,
		2799	tooltip => "Shows your experience per skill and item power",
		2800	},
		2801	"c/shopitems" => {
		2802	id => "infobox",
		2803	title => "Shop Items",
		2804	reply => undef,
		2805	tooltip => "Shows the items currently for sale in this shop",
		2806	},
		2807	"c/resistances" => {
		2808	id => "infobox",
		2809	title => "Resistances",
		2810	reply => undef,
		2811	tooltip => "Shows your resistances",
		2812	},
		2813	"c/pets" => {
		2814	id => "infobox",
		2815	title => "Pets",
		2816	reply => undef,
		2817	tooltip => "Shows information abotu your pets/a specific pet",
		2818	},
		2819	"c/perceiveself" => {
		2820	id => "infobox",
		2821	title => "Perceive Self",
		2822	reply => undef,
		2823	tooltip => "You gained detailed knowledge about yourself",
		2824	},
		2825	"c/uptime" => {
		2826	id => "infobox",
		2827	title => "Uptime",
		2828	reply => undef,
		2829	tooltip => "How long the server has been running since last restart",
		2830	},
		2831	"c/mapinfo" => {
		2832	id => "infobox",
		2833	title => "Map Info",
		2834	reply => undef,
		2835	tooltip => "Information related to the maps",
		2836	},
		2837	"c/party" => {
		2838	id => "party",
		2839	title => "Party",
		2840	reply => "gsay ",
		2841	tooltip => "Messages and chat related to your party",
		2842	},
		2843	"c/death" => {
		2844	id => "death",
		2845	title => "Death",
		2846	reply => undef,
		2847	tooltip => "Reason for and more info about your most recent death",
		2848	},
		2849	"c/say" => $SAY_CHANNEL,
		2850	"c/chat" => $CHAT_CHANNEL,
		2851	);
		2852
		2853	sub cf::client::send_msg {
		2854	my ($self, $channel, $msg, $color, @extra) = @_;
		2855
		2856	$msg = $self->pl->expand_cfpod ($msg)
		2857	unless $color & cf::NDI_VERBATIM;
		2858
		2859	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2860
		2861	# check predefined channels, for the benefit of C
		2862	if ($CHANNEL{$channel}) {
		2863	$channel = $CHANNEL{$channel};
		2864
		2865	$self->ext_msg (channel_info => $channel);
		2866	$channel = $channel->{id};
		2867
		2868	} elsif (ref $channel) {
		2869	# send meta info to client, if not yet sent
		2870	unless (exists $self->{channel}{$channel->{id}}) {
		2871	$self->{channel}{$channel->{id}} = $channel;
		2872	$self->ext_msg (channel_info => $channel);
		2873	}
		2874
		2875	$channel = $channel->{id};
		2876	}
		2877
		2878	return unless @extra || length $msg;
		2879
		2880	# default colour, mask it out
		2881	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2882	if $color & cf::NDI_DEF;
		2883
		2884	my $pkt = "msg "
		2885	. $self->{json_coder}->encode (
		2886	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2887	);
		2888
		2889	# try lzf for large packets
		2890	$pkt = "lzf " . Compress::LZF::compress $pkt
		2891	if 1024 <= length $pkt and $self->{can_lzf};
		2892
		2893	# split very large packets
		2894	if (8192 < length $pkt and $self->{can_lzf}) {
		2895	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2896	$pkt = "frag";
		2897	}
		2898
		2899	$self->send_packet ($pkt);
		2900	}
		2901
2089	=item $client->ext_event ($type, %msg)	2902	=item $client->ext_msg ($type, @msg)
2090		2903
2091	Sends an exti event to the client.	2904	Sends an ext event to the client.
2092		2905
2093	=cut	2906	=cut
2094		2907
2095	sub cf::client::ext_event($$%) {	2908	sub cf::client::ext_msg($$@) {
2096	my ($self, $type, %msg) = @_;	2909	my ($self, $type, @msg) = @_;
2097		2910
		2911	if ($self->extcmd == 2) {
		2912	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2913	} elsif ($self->extcmd == 1) { # TODO: remove
2098	$msg{msgtype} = "event_$type";	2914	push @msg, msgtype => "event_$type";
2099	$self->send_packet ("ext " . cf::to_json \%msg);	2915	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2916	}
		2917	}
		2918
		2919	=item $client->ext_reply ($msgid, @msg)
		2920
		2921	Sends an ext reply to the client.
		2922
		2923	=cut
		2924
		2925	sub cf::client::ext_reply($$@) {
		2926	my ($self, $id, @msg) = @_;
		2927
		2928	if ($self->extcmd == 2) {
		2929	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2930	} elsif ($self->extcmd == 1) {
		2931	#TODO: version 1, remove
		2932	unshift @msg, msgtype => "reply", msgid => $id;
		2933	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2934	}
2100	}	2935	}
2101		2936
2102	=item $success = $client->query ($flags, "text", \&cb)	2937	=item $success = $client->query ($flags, "text", \&cb)
2103		2938
2104	Queues a query to the client, calling the given callback with	2939	Queues a query to the client, calling the given callback with
2105	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2940	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2106	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2941	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2107		2942
2108	Queries can fail, so check the return code. Or don't, as queries will become	2943	Queries can fail, so check the return code. Or don't, as queries will
2109	reliable at some point in the future.	2944	become reliable at some point in the future.
2110		2945
2111	=cut	2946	=cut
2112		2947
2113	sub cf::client::query {	2948	sub cf::client::query {
2114	my ($self, $flags, $text, $cb) = @_;	2949	my ($self, $flags, $text, $cb) = @_;
…		…
2122	utf8::encode $text;	2957	utf8::encode $text;
2123	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2958	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2124		2959
2125	$self->send_packet ($self->{query_queue}[0][0])	2960	$self->send_packet ($self->{query_queue}[0][0])
2126	if @{ $self->{query_queue} } == 1;	2961	if @{ $self->{query_queue} } == 1;
		2962
		2963	1
2127	}	2964	}
2128		2965
2129	cf::client->attach (	2966	cf::client->attach (
		2967	on_connect => sub {
		2968	my ($ns) = @_;
		2969
		2970	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2971	},
2130	on_reply => sub {	2972	on_reply => sub {
2131	my ($ns, $msg) = @_;	2973	my ($ns, $msg) = @_;
2132		2974
2133	# this weird shuffling is so that direct followup queries	2975	# this weird shuffling is so that direct followup queries
2134	# get handled first	2976	# get handled first
…		…
2146	} else {	2988	} else {
2147	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2989	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2148	}	2990	}
2149	}	2991	}
2150	},	2992	},
		2993	on_exticmd => sub {
		2994	my ($ns, $buf) = @_;
		2995
		2996	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2997
		2998	if (ref $msg) {
		2999	my ($type, $reply, @payload) =
		3000	"ARRAY" eq ref $msg
		3001	? @$msg
		3002	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3003
		3004	my @reply;
		3005
		3006	if (my $cb = $EXTICMD{$type}) {
		3007	@reply = $cb->($ns, @payload);
		3008	}
		3009
		3010	$ns->ext_reply ($reply, @reply)
		3011	if $reply;
		3012
		3013	} else {
		3014	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3015	}
		3016
		3017	cf::override;
		3018	},
2151	);	3019	);
2152		3020
2153	=item $client->async (\&cb)	3021	=item $client->async (\&cb)
2154		3022
2155	Create a new coroutine, running the specified callback. The coroutine will	3023	Create a new coroutine, running the specified callback. The coroutine will
…		…
2196	our $safe = new Safe "safe";	3064	our $safe = new Safe "safe";
2197	our $safe_hole = new Safe::Hole;	3065	our $safe_hole = new Safe::Hole;
2198		3066
2199	$SIG{FPE} = 'IGNORE';	3067	$SIG{FPE} = 'IGNORE';
2200		3068
2201	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3069	$safe->permit_only (Opcode::opset qw(
		3070	:base_core :base_mem :base_orig :base_math
		3071	grepstart grepwhile mapstart mapwhile
		3072	sort time
		3073	));
2202		3074
2203	# here we export the classes and methods available to script code	3075	# here we export the classes and methods available to script code
2204		3076
2205	=pod	3077	=pod
2206		3078
2207	The following functions and methods are available within a safe environment:	3079	The following functions and methods are available within a safe environment:
2208		3080
2209	cf::object contr pay_amount pay_player map	3081	cf::object
		3082	contr pay_amount pay_player map x y force_find force_add destroy
		3083	insert remove name archname title slaying race decrease split
		3084	value
		3085
2210	cf::object::player player	3086	cf::object::player
2211	cf::player peaceful	3087	player
2212	cf::map trigger	3088
		3089	cf::player
		3090	peaceful
		3091
		3092	cf::map
		3093	trigger
2213		3094
2214	=cut	3095	=cut
2215		3096
2216	for (	3097	for (
2217	["cf::object" => qw(contr pay_amount pay_player map)],	3098	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3099	insert remove inv nrof name archname title slaying race
		3100	decrease split destroy change_exp value msg lore send_msg)],
2218	["cf::object::player" => qw(player)],	3101	["cf::object::player" => qw(player)],
2219	["cf::player" => qw(peaceful)],	3102	["cf::player" => qw(peaceful send_msg)],
2220	["cf::map" => qw(trigger)],	3103	["cf::map" => qw(trigger)],
2221	) {	3104	) {
2222	no strict 'refs';	3105	no strict 'refs';
2223	my ($pkg, @funs) = @$_;	3106	my ($pkg, @funs) = @$_;
2224	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3107	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2241	my ($code, %vars) = @_;	3124	my ($code, %vars) = @_;
2242		3125
2243	my $qcode = $code;	3126	my $qcode = $code;
2244	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3127	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2245	$qcode =~ s/\n/\\n/g;	3128	$qcode =~ s/\n/\\n/g;
		3129
		3130	%vars = (_dummy => 0) unless %vars;
2246		3131
2247	local $_;	3132	local $_;
2248	local @safe::cf::_safe_eval_args = values %vars;	3133	local @safe::cf::_safe_eval_args = values %vars;
2249		3134
2250	my $eval =	3135	my $eval =
…		…
2293	=back	3178	=back
2294		3179
2295	=cut	3180	=cut
2296		3181
2297	#############################################################################	3182	#############################################################################
2298
2299	=head2 EXTENSION DATABASE SUPPORT
2300
2301	Crossfire maintains a very simple database for extension use. It can
2302	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2303	convert to/from binary).
2304
2305	The parameter C<$family> should best start with the name of the extension
2306	using it, it should be unique.
2307
2308	=over 4
2309
2310	=item $value = cf::db_get $family => $key
2311
2312	Returns a single value from the database.
2313
2314	=item cf::db_put $family => $key => $value
2315
2316	Stores the given C<$value> in the family.
2317
2318	=cut
2319
2320	our $DB;
2321
2322	sub db_init {
2323	unless ($DB) {
2324	$DB = BDB::db_create $DB_ENV;
2325
2326	cf::sync_job {
2327	eval {
2328	$DB->set_flags (BDB::CHKSUM);
2329
2330	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2331	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2332	cf::cleanup "db_open(db): $!" if $!;
2333	};
2334	cf::cleanup "db_open(db): $@" if $@;
2335	};
2336	}
2337	}
2338
2339	sub db_get($$) {
2340	my $key = "$_[0]/$_[1]";
2341
2342	cf::sync_job {
2343	BDB::db_get $DB, undef, $key, my $data;
2344
2345	$! ? ()
2346	: $data
2347	}
2348	}
2349
2350	sub db_put($$$) {
2351	BDB::dbreq_pri 4;
2352	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2353	}
2354
2355	=item cf::cache $id => [$paths...], $processversion => $process
2356
2357	Generic caching function that returns the value of the resource $id,
2358	caching and regenerating as required.
2359
2360	This function can block.
2361
2362	=cut
2363
2364	sub cache {
2365	my ($id, $src, $processversion, $process) = @_;
2366
2367	my $meta =
2368	join "\x00",
2369	$processversion,
2370	map {
2371	aio_stat $_
2372	and Carp::croak "$_: $!";
2373
2374	($_, (stat _)[7,9])
2375	} @$src;
2376
2377	my $dbmeta = db_get cache => "$id/meta";
2378	if ($dbmeta ne $meta) {
2379	# changed, we may need to process
2380
2381	my @data;
2382	my $md5;
2383
2384	for (0 .. $#$src) {
2385	0 <= aio_load $src->[$_], $data[$_]
2386	or Carp::croak "$src->[$_]: $!";
2387	}
2388
2389	# if processing is expensive, check
2390	# checksum first
2391	if (1) {
2392	$md5 =
2393	join "\x00",
2394	$processversion,
2395	map {
2396	Coro::cede;
2397	($src->[$_], Digest::MD5::md5_hex $data[$_])
2398	} 0.. $#$src;
2399
2400
2401	my $dbmd5 = db_get cache => "$id/md5";
2402	if ($dbmd5 eq $md5) {
2403	db_put cache => "$id/meta", $meta;
2404
2405	return db_get cache => "$id/data";
2406	}
2407	}
2408
2409	my $t1 = Time::HiRes::time;
2410	my $data = $process->(\@data);
2411	my $t2 = Time::HiRes::time;
2412
2413	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2414
2415	db_put cache => "$id/data", $data;
2416	db_put cache => "$id/md5" , $md5;
2417	db_put cache => "$id/meta", $meta;
2418
2419	return $data;
2420	}
2421
2422	db_get cache => "$id/data"
2423	}
2424
2425	=item fork_call { }, $args
2426
2427	Executes the given code block with the given arguments in a seperate
2428	process, returning the results. Everything must be serialisable with
2429	Coro::Storable. May, of course, block. Note that the executed sub may
2430	never block itself or use any form of Event handling.
2431
2432	=cut
2433
2434	sub fork_call(&@) {
2435	my ($cb, @args) = @_;
2436
2437	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2438	# or die "socketpair: $!";
2439	pipe my $fh1, my $fh2
2440	or die "pipe: $!";
2441
2442	if (my $pid = fork) {
2443	close $fh2;
2444
2445	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2446	$res = Coro::Storable::thaw $res;
2447
2448	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2449
2450	die $$res unless "ARRAY" eq ref $res;
2451
2452	return wantarray ? @$res : $res->[-1];
2453	} else {
2454	reset_signals;
2455	local $SIG{__WARN__};
2456	local $SIG{__DIE__};
2457	eval {
2458	close $fh1;
2459
2460	my @res = eval { $cb->(@args) };
2461	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2462	};
2463
2464	warn $@ if $@;
2465	_exit 0;
2466	}
2467	}
2468
2469
2470
2471	#############################################################################
2472	# the server's init and main functions	3183	# the server's init and main functions
2473		3184
2474	sub load_facedata($) {	3185	sub load_facedata($) {
2475	my ($path) = @_;	3186	my ($path) = @_;
		3187
		3188	# HACK to clear player env face cache, we need some signal framework
		3189	# for this (global event?)
		3190	%ext::player_env::MUSIC_FACE_CACHE = ();
		3191
		3192	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2476		3193
2477	warn "loading facedata from $path\n";	3194	warn "loading facedata from $path\n";
2478		3195
2479	my $facedata;	3196	my $facedata;
2480	0 < aio_load $path, $facedata	3197	0 < aio_load $path, $facedata
…		…
2483	$facedata = Coro::Storable::thaw $facedata;	3200	$facedata = Coro::Storable::thaw $facedata;
2484		3201
2485	$facedata->{version} == 2	3202	$facedata->{version} == 2
2486	or cf::cleanup "$path: version mismatch, cannot proceed.";	3203	or cf::cleanup "$path: version mismatch, cannot proceed.";
2487		3204
		3205	# patch in the exptable
		3206	$facedata->{resource}{"res/exp_table"} = {
		3207	type => FT_RSRC,
		3208	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3209	};
		3210	cf::cede_to_tick;
		3211
2488	{	3212	{
2489	my $faces = $facedata->{faceinfo};	3213	my $faces = $facedata->{faceinfo};
2490		3214
2491	while (my ($face, $info) = each %$faces) {	3215	while (my ($face, $info) = each %$faces) {
2492	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3216	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3217
2493	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3218	cf::face::set_visibility $idx, $info->{visibility};
		3219	cf::face::set_magicmap $idx, $info->{magicmap};
2494	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3220	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2495	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3221	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2496	Coro::cede;	3222
		3223	cf::cede_to_tick;
2497	}	3224	}
2498		3225
2499	while (my ($face, $info) = each %$faces) {	3226	while (my ($face, $info) = each %$faces) {
2500	next unless $info->{smooth};	3227	next unless $info->{smooth};
		3228
2501	my $idx = cf::face::find $face	3229	my $idx = cf::face::find $face
2502	or next;	3230	or next;
		3231
2503	if (my $smooth = cf::face::find $info->{smooth}) {	3232	if (my $smooth = cf::face::find $info->{smooth}) {
		3233	cf::face::set_smooth $idx, $smooth;
2504	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3234	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2505	} else {	3235	} else {
2506	warn "smooth face '$info->{smooth}' not found for face '$face'";	3236	warn "smooth face '$info->{smooth}' not found for face '$face'";
2507	}	3237	}
2508	Coro::cede;	3238
		3239	cf::cede_to_tick;
2509	}	3240	}
2510	}	3241	}
2511		3242
2512	{	3243	{
2513	my $anims = $facedata->{animinfo};	3244	my $anims = $facedata->{animinfo};
2514		3245
2515	while (my ($anim, $info) = each %$anims) {	3246	while (my ($anim, $info) = each %$anims) {
2516	cf::anim::set $anim, $info->{frames}, $info->{facings};	3247	cf::anim::set $anim, $info->{frames}, $info->{facings};
2517	Coro::cede;	3248	cf::cede_to_tick;
2518	}	3249	}
2519		3250
2520	cf::anim::invalidate_all; # d'oh	3251	cf::anim::invalidate_all; # d'oh
2521	}	3252	}
2522		3253
		3254	{
		3255	# TODO: for gcfclient pleasure, we should give resources
		3256	# that gcfclient doesn't grok a >10000 face index.
		3257	my $res = $facedata->{resource};
		3258
		3259	while (my ($name, $info) = each %$res) {
		3260	if (defined $info->{type}) {
		3261	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3262	my $data;
		3263
		3264	if ($info->{type} & 1) {
		3265	# prepend meta info
		3266
		3267	my $meta = $enc->encode ({
		3268	name => $name,
		3269	%{ $info->{meta} || {} },
		3270	});
		3271
		3272	$data = pack "(w/a*)*", $meta, $info->{data};
		3273	} else {
		3274	$data = $info->{data};
		3275	}
		3276
		3277	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3278	cf::face::set_type $idx, $info->{type};
		3279	} else {
		3280	$RESOURCE{$name} = $info;
		3281	}
		3282
		3283	cf::cede_to_tick;
		3284	}
		3285	}
		3286
		3287	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3288
2523	1	3289	1
2524	}	3290	}
2525		3291
		3292	cf::global->attach (on_resource_update => sub {
		3293	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3294	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3295
		3296	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3297	my $sound = $soundconf->{compat}[$_]
		3298	or next;
		3299
		3300	my $face = cf::face::find "sound/$sound->[1]";
		3301	cf::sound::set $sound->[0] => $face;
		3302	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3303	}
		3304
		3305	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3306	my $face = cf::face::find "sound/$v";
		3307	cf::sound::set $k => $face;
		3308	}
		3309	}
		3310	});
		3311
		3312	register_exticmd fx_want => sub {
		3313	my ($ns, $want) = @_;
		3314
		3315	while (my ($k, $v) = each %$want) {
		3316	$ns->fx_want ($k, $v);
		3317	}
		3318	};
		3319
		3320	sub load_resource_file($) {
		3321	my $guard = lock_acquire "load_resource_file";
		3322
		3323	my $status = load_resource_file_ $_[0];
		3324	get_slot 0.1, 100;
		3325	cf::arch::commit_load;
		3326
		3327	$status
		3328	}
		3329
2526	sub reload_regions {	3330	sub reload_regions {
		3331	# HACK to clear player env face cache, we need some signal framework
		3332	# for this (global event?)
		3333	%ext::player_env::MUSIC_FACE_CACHE = ();
		3334
2527	load_resource_file "$MAPDIR/regions"	3335	load_resource_file "$MAPDIR/regions"
2528	or die "unable to load regions file\n";	3336	or die "unable to load regions file\n";
		3337
		3338	for (cf::region::list) {
		3339	$_->{match} = qr/$_->{match}/
		3340	if exists $_->{match};
		3341	}
2529	}	3342	}
2530		3343
2531	sub reload_facedata {	3344	sub reload_facedata {
2532	load_facedata "$DATADIR/facedata"	3345	load_facedata "$DATADIR/facedata"
2533	or die "unable to load facedata\n";	3346	or die "unable to load facedata\n";
…		…
2544	}	3357	}
2545		3358
2546	sub reload_resources {	3359	sub reload_resources {
2547	warn "reloading resource files...\n";	3360	warn "reloading resource files...\n";
2548		3361
2549	reload_regions;
2550	reload_facedata;	3362	reload_facedata;
2551	reload_archetypes;	3363	reload_archetypes;
		3364	reload_regions;
2552	reload_treasures;	3365	reload_treasures;
2553		3366
2554	warn "finished reloading resource files\n";	3367	warn "finished reloading resource files\n";
2555	}	3368	}
2556		3369
2557	sub init {	3370	sub reload_config {
2558	reload_resources;
2559	}
2560
2561	sub cfg_load {
2562	open my $fh, "<:utf8", "$CONFDIR/config"	3371	open my $fh, "<:utf8", "$CONFDIR/config"
2563	or return;	3372	or return;
2564		3373
2565	local $/;	3374	local $/;
2566	*CFG = YAML::Syck::Load <$fh>;	3375	*CFG = YAML::Load <$fh>;
2567		3376
2568	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3377	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2569		3378
2570	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3379	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2571	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3380	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2577	};	3386	};
2578	warn $@ if $@;	3387	warn $@ if $@;
2579	}	3388	}
2580	}	3389	}
2581		3390
		3391	sub pidfile() {
		3392	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3393	or die "$PIDFILE: $!";
		3394	flock $fh, &Fcntl::LOCK_EX
		3395	or die "$PIDFILE: flock: $!";
		3396	$fh
		3397	}
		3398
		3399	# make sure only one server instance is running at any one time
		3400	sub atomic {
		3401	my $fh = pidfile;
		3402
		3403	my $pid = <$fh>;
		3404	kill 9, $pid if $pid > 0;
		3405
		3406	seek $fh, 0, 0;
		3407	print $fh $$;
		3408	}
		3409
		3410	sub main_loop {
		3411	warn "EV::loop starting\n";
		3412	if (1) {
		3413	EV::loop;
		3414	}
		3415	warn "EV::loop returned\n";
		3416	goto &main_loop unless $REALLY_UNLOOP;
		3417	}
		3418
2582	sub main {	3419	sub main {
		3420	cf::init_globals; # initialise logging
		3421
		3422	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3423	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3424	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3425	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3426
		3427	cf::init_experience;
		3428	cf::init_anim;
		3429	cf::init_attackmess;
		3430	cf::init_dynamic;
		3431
		3432	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3433
2583	# we must not ever block the main coroutine	3434	# we must not ever block the main coroutine
2584	local $Coro::idle = sub {	3435	local $Coro::idle = sub {
2585	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3436	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2586	(async {	3437	(async {
2587	Event::one_event;	3438	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3439	EV::loop EV::LOOP_ONESHOT;
2588	})->prio (Coro::PRIO_MAX);	3440	})->prio (Coro::PRIO_MAX);
2589	};	3441	};
2590		3442
2591	cfg_load;	3443	evthread_start IO::AIO::poll_fileno;
		3444
		3445	cf::sync_job {
		3446	reload_resources;
		3447	reload_config;
2592	db_init;	3448	db_init;
		3449
		3450	cf::load_settings;
		3451	cf::load_materials;
		3452	cf::init_uuid;
		3453	cf::init_signals;
		3454	cf::init_commands;
		3455	cf::init_skills;
		3456
		3457	cf::init_beforeplay;
		3458
		3459	atomic;
		3460
2593	load_extensions;	3461	load_extensions;
2594		3462
2595	$TICK_WATCHER->start;	3463	utime time, time, $RUNTIMEFILE;
2596	Event::loop;	3464
		3465	# no (long-running) fork's whatsoever before this point(!)
		3466	use POSIX ();
		3467	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3468
		3469	(pop @POST_INIT)->(0) while @POST_INIT;
		3470	};
		3471
		3472	main_loop;
2597	}	3473	}
2598		3474
2599	#############################################################################	3475	#############################################################################
2600	# initialisation and cleanup	3476	# initialisation and cleanup
2601		3477
2602	# install some emergency cleanup handlers	3478	# install some emergency cleanup handlers
2603	BEGIN {	3479	BEGIN {
		3480	our %SIGWATCHER = ();
2604	for my $signal (qw(INT HUP TERM)) {	3481	for my $signal (qw(INT HUP TERM)) {
2605	Event->signal (	3482	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2606	reentrant => 0,
2607	data => WF_AUTOCANCEL,
2608	signal => $signal,
2609	prio => 0,
2610	cb => sub {
2611	cf::cleanup "SIG$signal";	3483	cf::cleanup "SIG$signal";
2612	},
2613	);	3484	};
		3485	}
		3486	}
		3487
		3488	sub write_runtime_sync {
		3489	# first touch the runtime file to show we are still running:
		3490	# the fsync below can take a very very long time.
		3491
		3492	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3493
		3494	my $guard = cf::lock_acquire "write_runtime";
		3495
		3496	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3497	or return;
		3498
		3499	my $value = $cf::RUNTIME + 90 + 10;
		3500	# 10 is the runtime save interval, for a monotonic clock
		3501	# 60 allows for the watchdog to kill the server.
		3502
		3503	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3504	and return;
		3505
		3506	# always fsync - this file is important
		3507	aio_fsync $fh
		3508	and return;
		3509
		3510	# touch it again to show we are up-to-date
		3511	aio_utime $fh, undef, undef;
		3512
		3513	close $fh
		3514	or return;
		3515
		3516	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3517	and return;
		3518
		3519	warn "runtime file written.\n";
		3520
2614	}	3521	1
		3522	}
		3523
		3524	our $uuid_lock;
		3525	our $uuid_skip;
		3526
		3527	sub write_uuid_sync($) {
		3528	$uuid_skip ||= $_[0];
		3529
		3530	return if $uuid_lock;
		3531	local $uuid_lock = 1;
		3532
		3533	my $uuid = "$LOCALDIR/uuid";
		3534
		3535	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3536	or return;
		3537
		3538	my $value = uuid_seq uuid_cur;
		3539
		3540	unless ($value) {
		3541	warn "cowardly refusing to write zero uuid value!\n";
		3542	return;
		3543	}
		3544
		3545	my $value = uuid_str $value + $uuid_skip;
		3546	$uuid_skip = 0;
		3547
		3548	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3549	and return;
		3550
		3551	# always fsync - this file is important
		3552	aio_fsync $fh
		3553	and return;
		3554
		3555	close $fh
		3556	or return;
		3557
		3558	aio_rename "$uuid~", $uuid
		3559	and return;
		3560
		3561	warn "uuid file written ($value).\n";
		3562
		3563	1
		3564
		3565	}
		3566
		3567	sub write_uuid($$) {
		3568	my ($skip, $sync) = @_;
		3569
		3570	$sync ? write_uuid_sync $skip
		3571	: async { write_uuid_sync $skip };
2615	}	3572	}
2616		3573
2617	sub emergency_save() {	3574	sub emergency_save() {
2618	my $freeze_guard = cf::freeze_mainloop;	3575	my $freeze_guard = cf::freeze_mainloop;
2619		3576
2620	warn "enter emergency perl save\n";	3577	warn "emergency_perl_save: enter\n";
2621		3578
2622	cf::sync_job {	3579	cf::sync_job {
		3580	# this is a trade-off: we want to be very quick here, so
		3581	# save all maps without fsync, and later call a global sync
		3582	# (which in turn might be very very slow)
		3583	local $USE_FSYNC = 0;
		3584
2623	# use a peculiar iteration method to avoid tripping on perl	3585	# use a peculiar iteration method to avoid tripping on perl
2624	# refcount bugs in for. also avoids problems with players	3586	# refcount bugs in for. also avoids problems with players
2625	# and maps saved/destroyed asynchronously.	3587	# and maps saved/destroyed asynchronously.
2626	warn "begin emergency player save\n";	3588	warn "emergency_perl_save: begin player save\n";
2627	for my $login (keys %cf::PLAYER) {	3589	for my $login (keys %cf::PLAYER) {
2628	my $pl = $cf::PLAYER{$login} or next;	3590	my $pl = $cf::PLAYER{$login} or next;
2629	$pl->valid or next;	3591	$pl->valid or next;
		3592	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2630	$pl->save;	3593	$pl->save;
2631	}	3594	}
2632	warn "end emergency player save\n";	3595	warn "emergency_perl_save: end player save\n";
2633		3596
2634	warn "begin emergency map save\n";	3597	warn "emergency_perl_save: begin map save\n";
2635	for my $path (keys %cf::MAP) {	3598	for my $path (keys %cf::MAP) {
2636	my $map = $cf::MAP{$path} or next;	3599	my $map = $cf::MAP{$path} or next;
2637	$map->valid or next;	3600	$map->valid or next;
2638	$map->save;	3601	$map->save;
2639	}	3602	}
2640	warn "end emergency map save\n";	3603	warn "emergency_perl_save: end map save\n";
2641		3604
2642	warn "begin emergency database checkpoint\n";	3605	warn "emergency_perl_save: begin database checkpoint\n";
2643	BDB::db_env_txn_checkpoint $DB_ENV;	3606	BDB::db_env_txn_checkpoint $DB_ENV;
2644	warn "end emergency database checkpoint\n";	3607	warn "emergency_perl_save: end database checkpoint\n";
		3608
		3609	warn "emergency_perl_save: begin write uuid\n";
		3610	write_uuid_sync 1;
		3611	warn "emergency_perl_save: end write uuid\n";
2645	};	3612	};
2646		3613
		3614	warn "emergency_perl_save: starting sync()\n";
		3615	IO::AIO::aio_sync sub {
		3616	warn "emergency_perl_save: finished sync()\n";
		3617	};
		3618
2647	warn "leave emergency perl save\n";	3619	warn "emergency_perl_save: leave\n";
2648	}	3620	}
2649		3621
2650	sub post_cleanup {	3622	sub post_cleanup {
2651	my ($make_core) = @_;	3623	my ($make_core) = @_;
2652		3624
2653	warn Carp::longmess "post_cleanup backtrace"	3625	warn Carp::longmess "post_cleanup backtrace"
2654	if $make_core;	3626	if $make_core;
		3627
		3628	my $fh = pidfile;
		3629	unlink $PIDFILE if <$fh> == $$;
		3630	}
		3631
		3632	# a safer delete_package, copied from Symbol
		3633	sub clear_package($) {
		3634	my $pkg = shift;
		3635
		3636	# expand to full symbol table name if needed
		3637	unless ($pkg =~ /^main::.*::$/) {
		3638	$pkg = "main$pkg" if $pkg =~ /^::/;
		3639	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3640	$pkg .= '::' unless $pkg =~ /::$/;
		3641	}
		3642
		3643	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3644	my $stem_symtab = *{$stem}{HASH};
		3645
		3646	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3647	or return;
		3648
		3649	# clear all symbols
		3650	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3651	for my $name (keys %$leaf_symtab) {
		3652	_gv_clear *{"$pkg$name"};
		3653	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3654	}
		3655	warn "cleared package $pkg\n";#d#
2655	}	3656	}
2656		3657
2657	sub do_reload_perl() {	3658	sub do_reload_perl() {
2658	# can/must only be called in main	3659	# can/must only be called in main
2659	if ($Coro::current != $Coro::main) {	3660	if ($Coro::current != $Coro::main) {
2660	warn "can only reload from main coroutine";	3661	warn "can only reload from main coroutine";
2661	return;	3662	return;
2662	}	3663	}
2663		3664
		3665	return if $RELOAD++;
		3666
		3667	my $t1 = EV::time;
		3668
		3669	while ($RELOAD) {
2664	warn "reloading...";	3670	warn "reloading...";
2665		3671
2666	warn "entering sync_job";	3672	warn "entering sync_job";
2667		3673
2668	cf::sync_job {	3674	cf::sync_job {
2669	cf::write_runtime; # external watchdog should not bark	3675	cf::write_runtime_sync; # external watchdog should not bark
2670	cf::emergency_save;	3676	cf::emergency_save;
2671	cf::write_runtime; # external watchdog should not bark	3677	cf::write_runtime_sync; # external watchdog should not bark
2672		3678
2673	warn "syncing database to disk";	3679	warn "syncing database to disk";
2674	BDB::db_env_txn_checkpoint $DB_ENV;	3680	BDB::db_env_txn_checkpoint $DB_ENV;
2675		3681
2676	# if anything goes wrong in here, we should simply crash as we already saved	3682	# if anything goes wrong in here, we should simply crash as we already saved
2677		3683
2678	warn "cancelling all WF_AUTOCANCEL watchers";
2679	for (Event::all_watchers) {
2680	$_->cancel if $_->data & WF_AUTOCANCEL;
2681	}
2682
2683	warn "flushing outstanding aio requests";	3684	warn "flushing outstanding aio requests";
2684	for (;;) {
2685	BDB::flush;
2686	IO::AIO::flush;
2687	Coro::cede;
2688	last unless IO::AIO::nreqs || BDB::nreqs;	3685	while (IO::AIO::nreqs || BDB::nreqs) {
2689	warn "iterate...";	3686	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2690	}
2691
2692	++$RELOAD;
2693
2694	warn "cancelling all extension coros";
2695	$_->cancel for values %EXT_CORO;
2696	%EXT_CORO = ();
2697
2698	warn "removing commands";
2699	%COMMAND = ();
2700
2701	warn "removing ext commands";
2702	%EXTCMD = ();
2703
2704	warn "unloading/nuking all extensions";
2705	for my $pkg (@EXTS) {
2706	warn "... unloading $pkg";
2707
2708	if (my $cb = $pkg->can ("unload")) {
2709	eval {
2710	$cb->($pkg);
2711	1
2712	} or warn "$pkg unloaded, but with errors: $@";
2713	}	3687	}
2714		3688
2715	warn "... nuking $pkg";	3689	warn "cancelling all extension coros";
2716	Symbol::delete_package $pkg;	3690	$_->cancel for values %EXT_CORO;
2717	}	3691	%EXT_CORO = ();
2718		3692
2719	warn "unloading all perl modules loaded from $LIBDIR";	3693	warn "removing commands";
2720	while (my ($k, $v) = each %INC) {	3694	%COMMAND = ();
2721	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2722		3695
		3696	warn "removing ext/exti commands";
		3697	%EXTCMD = ();
		3698	%EXTICMD = ();
		3699
		3700	warn "unloading/nuking all extensions";
		3701	for my $pkg (@EXTS) {
2723	warn "... unloading $k";	3702	warn "... unloading $pkg";
2724	delete $INC{$k};
2725		3703
2726	$k =~ s/\.pm$//;
2727	$k =~ s/\//::/g;
2728
2729	if (my $cb = $k->can ("unload_module")) {	3704	if (my $cb = $pkg->can ("unload")) {
		3705	eval {
2730	$cb->();	3706	$cb->($pkg);
		3707	1
		3708	} or warn "$pkg unloaded, but with errors: $@";
		3709	}
		3710
		3711	warn "... clearing $pkg";
		3712	clear_package $pkg;
2731	}	3713	}
2732		3714
2733	Symbol::delete_package $k;	3715	warn "unloading all perl modules loaded from $LIBDIR";
		3716	while (my ($k, $v) = each %INC) {
		3717	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3718
		3719	warn "... unloading $k";
		3720	delete $INC{$k};
		3721
		3722	$k =~ s/\.pm$//;
		3723	$k =~ s/\//::/g;
		3724
		3725	if (my $cb = $k->can ("unload_module")) {
		3726	$cb->();
		3727	}
		3728
		3729	clear_package $k;
2734	}	3730	}
2735		3731
2736	warn "getting rid of safe::, as good as possible";	3732	warn "getting rid of safe::, as good as possible";
2737	Symbol::delete_package "safe::$_"	3733	clear_package "safe::$_"
2738	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3734	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2739		3735
2740	warn "unloading cf.pm \"a bit\"";	3736	warn "unloading cf.pm \"a bit\"";
2741	delete $INC{"cf.pm"};	3737	delete $INC{"cf.pm"};
2742	delete $INC{"cf/pod.pm"};	3738	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2743		3739
2744	# don't, removes xs symbols, too,	3740	# don't, removes xs symbols, too,
2745	# and global variables created in xs	3741	# and global variables created in xs
2746	#Symbol::delete_package __PACKAGE__;	3742	#clear_package __PACKAGE__;
2747		3743
2748	warn "unload completed, starting to reload now";	3744	warn "unload completed, starting to reload now";
2749		3745
2750	warn "reloading cf.pm";	3746	warn "reloading cf.pm";
2751	require cf;	3747	require cf;
2752	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3748	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2753		3749
2754	warn "loading config and database again";	3750	warn "loading config and database again";
2755	cf::cfg_load;	3751	cf::reload_config;
2756		3752
2757	warn "loading extensions";	3753	warn "loading extensions";
2758	cf::load_extensions;	3754	cf::load_extensions;
2759		3755
		3756	if ($REATTACH_ON_RELOAD) {
2760	warn "reattaching attachments to objects/players";	3757	warn "reattaching attachments to objects/players";
2761	_global_reattach; # objects, sockets	3758	_global_reattach; # objects, sockets
2762	warn "reattaching attachments to maps";	3759	warn "reattaching attachments to maps";
2763	reattach $_ for values %MAP;	3760	reattach $_ for values %MAP;
2764	warn "reattaching attachments to players";	3761	warn "reattaching attachments to players";
2765	reattach $_ for values %PLAYER;	3762	reattach $_ for values %PLAYER;
		3763	}
2766		3764
		3765	warn "running post_init jobs";
		3766	(pop @POST_INIT)->(1) while @POST_INIT;
		3767
2767	warn "leaving sync_job";	3768	warn "leaving sync_job";
2768		3769
2769	1	3770	1
2770	} or do {	3771	} or do {
2771	warn $@;	3772	warn $@;
2772	warn "error while reloading, exiting.";	3773	cf::cleanup "error while reloading, exiting.";
2773	exit 1;
2774	};	3774	};
2775		3775
2776	warn "reloaded";	3776	warn "reloaded";
		3777	--$RELOAD;
		3778	}
		3779
		3780	$t1 = EV::time - $t1;
		3781	warn "reload completed in ${t1}s\n";
2777	};	3782	};
2778		3783
2779	our $RELOAD_WATCHER; # used only during reload	3784	our $RELOAD_WATCHER; # used only during reload
2780		3785
2781	sub reload_perl() {	3786	sub reload_perl() {
2782	# doing reload synchronously and two reloads happen back-to-back,	3787	# doing reload synchronously and two reloads happen back-to-back,
2783	# coro crashes during coro_state_free->destroy here.	3788	# coro crashes during coro_state_free->destroy here.
2784		3789
2785	$RELOAD_WATCHER ||= Event->timer (	3790	$RELOAD_WATCHER ||= cf::async {
2786	reentrant => 0,	3791	Coro::AIO::aio_wait cache_extensions;
2787	after => 0,	3792
2788	data => WF_AUTOCANCEL,	3793	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2789	cb => sub {
2790	do_reload_perl;	3794	do_reload_perl;
2791	undef $RELOAD_WATCHER;	3795	undef $RELOAD_WATCHER;
2792	},	3796	};
2793	);	3797	};
2794	}	3798	}
2795		3799
2796	register_command "reload" => sub {	3800	register_command "reload" => sub {
2797	my ($who, $arg) = @_;	3801	my ($who, $arg) = @_;
2798		3802
2799	if ($who->flag (FLAG_WIZ)) {	3803	if ($who->flag (FLAG_WIZ)) {
2800	$who->message ("reloading server.");	3804	$who->message ("reloading server.");
		3805	async {
		3806	$Coro::current->{desc} = "perl_reload";
2801	async { reload_perl };	3807	reload_perl;
		3808	};
2802	}	3809	}
2803	};	3810	};
2804		3811
2805	unshift @INC, $LIBDIR;	3812	unshift @INC, $LIBDIR;
2806		3813
…		…
2808		3815
2809	our @WAIT_FOR_TICK;	3816	our @WAIT_FOR_TICK;
2810	our @WAIT_FOR_TICK_BEGIN;	3817	our @WAIT_FOR_TICK_BEGIN;
2811		3818
2812	sub wait_for_tick {	3819	sub wait_for_tick {
2813	return unless $TICK_WATCHER->is_active;
2814	return if $Coro::current == $Coro::main;	3820	return if tick_inhibit || $Coro::current == $Coro::main;
2815		3821
2816	my $signal = new Coro::Signal;	3822	my $signal = new Coro::Signal;
2817	push @WAIT_FOR_TICK, $signal;	3823	push @WAIT_FOR_TICK, $signal;
2818	$signal->wait;	3824	$signal->wait;
2819	}	3825	}
2820		3826
2821	sub wait_for_tick_begin {	3827	sub wait_for_tick_begin {
2822	return unless $TICK_WATCHER->is_active;
2823	return if $Coro::current == $Coro::main;	3828	return if tick_inhibit || $Coro::current == $Coro::main;
2824		3829
2825	my $signal = new Coro::Signal;	3830	my $signal = new Coro::Signal;
2826	push @WAIT_FOR_TICK_BEGIN, $signal;	3831	push @WAIT_FOR_TICK_BEGIN, $signal;
2827	$signal->wait;	3832	$signal->wait;
2828	}	3833	}
2829		3834
2830	$TICK_WATCHER = Event->timer (	3835	sub tick {
2831	reentrant => 0,
2832	parked => 1,
2833	prio => 0,
2834	at => $NEXT_TICK || $TICK,
2835	data => WF_AUTOCANCEL,
2836	cb => sub {
2837	if ($Coro::current != $Coro::main) {	3836	if ($Coro::current != $Coro::main) {
2838	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3837	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2839	unless ++$bug_warning > 10;	3838	unless ++$bug_warning > 10;
2840	return;	3839	return;
2841	}	3840	}
2842		3841
2843	$NOW = Event::time;
2844
2845	cf::server_tick; # one server iteration	3842	cf::server_tick; # one server iteration
2846		3843
2847	$RUNTIME += $TICK;
2848	$NEXT_TICK += $TICK;
2849
2850	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3844	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2851	$NEXT_RUNTIME_WRITE = $NOW + 10;	3845	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2852	Coro::async_pool {	3846	Coro::async_pool {
		3847	$Coro::current->{desc} = "runtime saver";
2853	write_runtime	3848	write_runtime_sync
2854	or warn "ERROR: unable to write runtime file: $!";	3849	or warn "ERROR: unable to write runtime file: $!";
2855	};
2856	}	3850	};
		3851	}
2857		3852
2858	# my $AFTER = Event::time;
2859	# warn $AFTER - $NOW;#d#
2860
2861	# if we are delayed by four ticks or more, skip them all
2862	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2863
2864	$TICK_WATCHER->at ($NEXT_TICK);
2865	$TICK_WATCHER->start;
2866
2867	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3853	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2868	$sig->send;	3854	$sig->send;
2869	}	3855	}
2870	while (my $sig = shift @WAIT_FOR_TICK) {	3856	while (my $sig = shift @WAIT_FOR_TICK) {
2871	$sig->send;	3857	$sig->send;
2872	}
2873
2874	_post_tick;
2875	},	3858	}
2876	);	3859
		3860	$LOAD = ($NOW - $TICK_START) / $TICK;
		3861	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3862
		3863	if (0) {
		3864	if ($NEXT_TICK) {
		3865	my $jitter = $TICK_START - $NEXT_TICK;
		3866	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3867	warn "jitter $JITTER\n";#d#
		3868	}
		3869	}
		3870	}
2877		3871
2878	{	3872	{
2879	BDB::max_poll_time $TICK * 0.1;	3873	# configure BDB
2880	$BDB_POLL_WATCHER = Event->io (	3874
2881	reentrant => 0,
2882	fd => BDB::poll_fileno,
2883	poll => 'r',
2884	prio => 0,
2885	data => WF_AUTOCANCEL,
2886	cb => \&BDB::poll_cb,
2887	);
2888	BDB::min_parallel 8;	3875	BDB::min_parallel 8;
2889		3876	BDB::max_poll_reqs $TICK * 0.1;
2890	BDB::set_sync_prepare {	3877	$AnyEvent::BDB::WATCHER->priority (1);
2891	my $status;
2892	my $current = $Coro::current;
2893	(
2894	sub {
2895	$status = $!;
2896	$current->ready; undef $current;
2897	},
2898	sub {
2899	Coro::schedule while defined $current;
2900	$! = $status;
2901	},
2902	)
2903	};
2904		3878
2905	unless ($DB_ENV) {	3879	unless ($DB_ENV) {
2906	$DB_ENV = BDB::db_env_create;	3880	$DB_ENV = BDB::db_env_create;
		3881	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3882	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3883	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3884	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3885	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2907		3886
2908	cf::sync_job {	3887	cf::sync_job {
2909	eval {	3888	eval {
2910	BDB::db_env_open	3889	BDB::db_env_open
2911	$DB_ENV,	3890	$DB_ENV,
…		…
2913	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3892	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2914	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3893	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2915	0666;	3894	0666;
2916		3895
2917	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3896	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2918
2919	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2920	$DB_ENV->set_lk_detect;
2921	};	3897	};
2922		3898
2923	cf::cleanup "db_env_open(db): $@" if $@;	3899	cf::cleanup "db_env_open(db): $@" if $@;
2924	};	3900	};
2925	}	3901	}
		3902
		3903	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3904	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3905	};
		3906	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3907	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3908	};
		3909	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3910	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3911	};
2926	}	3912	}
2927		3913
2928	{	3914	{
		3915	# configure IO::AIO
		3916
2929	IO::AIO::min_parallel 8;	3917	IO::AIO::min_parallel 8;
2930
2931	undef $Coro::AIO::WATCHER;
2932	IO::AIO::max_poll_time $TICK * 0.1;	3918	IO::AIO::max_poll_time $TICK * 0.1;
2933	$AIO_POLL_WATCHER = Event->io (	3919	undef $AnyEvent::AIO::WATCHER;
2934	reentrant => 0,
2935	data => WF_AUTOCANCEL,
2936	fd => IO::AIO::poll_fileno,
2937	poll => 'r',
2938	prio => 6,
2939	cb => \&IO::AIO::poll_cb,
2940	);
2941	}	3920	}
2942		3921
2943	my $_log_backtrace;	3922	my $_log_backtrace;
2944		3923
2945	sub _log_backtrace {	3924	sub _log_backtrace {
…		…
2948	$msg =~ s/\n//;	3927	$msg =~ s/\n//;
2949		3928
2950	# limit the # of concurrent backtraces	3929	# limit the # of concurrent backtraces
2951	if ($_log_backtrace < 2) {	3930	if ($_log_backtrace < 2) {
2952	++$_log_backtrace;	3931	++$_log_backtrace;
		3932	my $perl_bt = Carp::longmess $msg;
2953	async {	3933	async {
		3934	$Coro::current->{desc} = "abt $msg";
		3935
2954	my @bt = fork_call {	3936	my @bt = fork_call {
2955	@addr = map { sprintf "%x", $_ } @addr;	3937	@addr = map { sprintf "%x", $_ } @addr;
2956	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	3938	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2957	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	3939	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2958	or die "addr2line: $!";	3940	or die "addr2line: $!";
…		…
2966	}	3948	}
2967		3949
2968	@funcs	3950	@funcs
2969	};	3951	};
2970		3952
2971	LOG llevInfo, "[ABT] $msg\n";	3953	LOG llevInfo, "[ABT] $perl_bt\n";
		3954	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
2972	LOG llevInfo, "[ABT] $_\n" for @bt;	3955	LOG llevInfo, "[ABT] $_\n" for @bt;
2973	--$_log_backtrace;	3956	--$_log_backtrace;
2974	};	3957	};
2975	} else {	3958	} else {
2976	LOG llevInfo, "[ABT] $msg\n";	3959	LOG llevInfo, "[ABT] $msg\n";
2977	LOG llevInfo, "[ABT] [suppressed]\n";	3960	LOG llevInfo, "[ABT] [suppressed]\n";
2978	}	3961	}
2979	}	3962	}
2980		3963
2981	# load additional modules	3964	# load additional modules
2982	use cf::pod;	3965	require "cf/$_.pm" for @EXTRA_MODULES;
2983		3966
2984	END { cf::emergency_save }	3967	END { cf::emergency_save }
2985		3968
2986	1	3969	1
2987		3970

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